10 Best Lock And Key Diary in The UK

Last updated on 15/08/2025

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MGGAO Diary with Lock for Writing, PU Hardcover Leather Locked Journal, B6 Personal Organizer for Men Women, 288 Pages 100gsm Ruled Paper

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Why We Love It

Beautiful design enhances aesthetic appeal.
Durable leather feels luxurious.
Heart-shaped lock secures secrets.

Main Highlights

Elegant Floral Journal with Lock: Our journal features a stunning cover design with a beautiful rose encircled by delicate vines. This artistic design not only enhances the aesthetic appeal of the journal but also adds a touch of nature's beauty, making it a perfect accessory for those who appreciate fine details.
Premium Leather Cover: Crafted from high-quality leather, this journal offers both durability and a luxurious feel. The leather cover is available in four exquisite colors: blue, green, pink, and purple. Choose the color that best matches your personal style or collect all four for a complete set.
Secure Heart-Shaped Lock: Protect your private thoughts and cherished memories with the unique heart-shaped combination lock. This lock allows you to set and reset your own personal code, ensuring that your journal remains secure and that your secrets are always safe.
High-Quality Paper: Each journal is filled with 100gsm thick paper, providing a smooth and enjoyable writing experience. The high-quality paper minimizes bleed-through, making it ideal for various types of writing instruments, including pens, pencils. Whether you’re jotting down notes, sketching, or journaling, the paper quality enhances your creativity.
Luxurious Details and Ample Space: Size:13.5×18 cm. With 288 pages (144 sheets) of gold-edged paper, this journal offers ample space for all your thoughts, plans, and creative ideas. The gold edging adds a touch of sophistication and luxury, making each page a pleasure to turn. This journal is perfect for daily use, special projects, or as a thoughtful gift for friends and family.

MGGAO Diary With Lock, Locked Journal for Women Girls, Refillable Water-Proof PU Leather Journal with 224 Lined Paper, B6 Secret Personal Daily Journal, Stylish Silver Locking Diary

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Why We Love It

Stylish and secure lock.
Perfect gift for women.
Waterproof PU leather cover.

Main Highlights

UPDATE STYLISH SILVER LOCK: The stylish silver lock chosen for the diary is a lock that has undergone two quality checks to keep it beautiful while perfectly protecting your privacy. The password lock setting gives you a sense of security and ensures that others do not peeve at your diary.
WOMEN/GIRLS GIFT: With a locking floral journal fresh cover, the papers printed with a light rose, so that your ideas jump off the paper, the lockable journal comes with a simple style box, the woman and girl who receive the gift will be very happy and satisfied.
WATER-PROOF PU LEATHER: The waterproof leather cover of the journal has high-quality PU leather, so there is no need to worry about water getting wet from your inside cover. The diary cover is a delicate floral pattern, especially suitable for girls, and women, like girls, a beautiful gift. It is the perfect gift choice for Christmas, Easter, Halloween, birthdays, and anniversaries!
PERSONALIZED REFILLABLE DIARY: This novelty diary with lock measures 7.8x5.4x1in (20 x13.7x2.5cm) and includes 100g 224 pages/112 sheets of thick paper that won’t leak ink and fits any pen, 1 ribbon bookmark to help mark notes, 1 pen holder, and 1 sturdy combination lock, combination lock instructions for use, designed with refillable paper, refilled the papers for reuse.
MGGAO BRAND GUARANTEE: Our brand promise you can buy our locked journal with confidence; if there are any questions about this locked notebook, don’t hesitate to get in touch with us; we promise to reply within 24 hours; we hope to provide you with a pleasant shopping experience!

Nicpro Diary with Lock, A5 PU Leather Journal with Lock, Metal Pen, 260 Pages Password Notebook for Men and Women, Vintage Lock Daily Journal for Travel, Note Take, Plans, Organize (10 x 7 in)

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Why We Love It

Protects personal privacy effectively.
Sophisticated and elegant appearance.
Perfect for various applications.

Main Highlights

【Diary with Lock】: Come with an A5 Journal with Lock, a ballpoint pen for writing. On the front of the cover has built-in pockets for paper and cards. The password lock can protect your personal privacy well.
【Premium Leather Cover】: The soft surface of Nicpro Diary with Lock is with a high quality PU cover to protect your diary from demage or wet.
【Vintage Password Lock】: The lockable diary is easy to use. There are countless permutations possible for password composing of three numbers from 0-to 9. The initial password is 0-0-0, you can change your own password according to the instruction.
【Advanced Note Pages】: The journal with lock has 130 sheets, 260 pages. The refillable pages are beige to protect your eyes. And it is thick without bleed or ghosting for writing. It allows you to easily turn pages and unfold it to 180 degrees for writing smooth.
【Perfect Gift】: Our lock diary comes with a ballpoint pen for smooth writing. It can be used for diary, note-taking, work meeting, making sketches and drawings, wide applications. The appearance of the notebook looks very elegant and sophisticated, making it a great gift for family, friends, students, teachers!

Diary with Lock for Girls & Women - 360 Pages Journal with Lock and Keys, Pen and Gift box – Gift Ideas for Birthday Christmas, Cute Journals Set for Girls Ages 8-14 (Lavender Purple)

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Why We Love It

Stunning design inspires creativity.
Elegant lock for privacy.
Inspirational quote motivates daily.

Main Highlights

Magical Rose Garden Design: A stunning rose garden under soft moonlight—this premium faux leather cover sets the tone for quiet reflection and creative writing. It's more than a diary—it’s her personal sanctuary to grow, dream, and express
Heart-Shaped Lock with Two Keys: Designed with a golden heart lock and two delicate keys, this diary offers a safe and private space for her innermost thoughts. Keep memories secure while adding a touch of elegance to every day
Engraved Quote for Daily Inspiration：The front cover features the empowering quote: "Be the change you wish to see in the world." A timeless message that encourages girls to believe in their voice and lead with heart
360 Gold-Edged Pages: With 360 acid-free pages and gold-foiled edges, this diary (7.8'' x 5.7'') is perfect for writing, drawing, or daily journaling. It offers a full year of space for ideas, feelings, and stories
Quality & Practical Features：The soft-touch faux leather cover is padded for durability and comfort. Inside, you’ll find a matching pearl pen, ribbon bookmark, a built-in pen loop, and inner pockets for storing small items or stickers. Every detail is designed to enhance her journaling experience
Elegant Gift Set: Arrives in an elegant gift box that makes it perfect for any special moment—whether it’s Christmas, a birthday, or graduation. A meaningful gift for daughter, granddaughter, girlfriend, or coworker

Harry Potter: Hogwarts & Lock & Key Diary [Invisible Ink Pen]: Lock & Key Diary with Invisible Ink Pen

heavenlife Lock Journal with Pen B6, Vintage Diary with Lock and Key, PU Leather Notebook, 180/360 Pages, Heart Shaped Lock for Women Girls Kids (Purple)

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Why We Love It

Stylish heart-shaped lock design.
Ample writing space available.
Crafted with high-quality materials.

Main Highlights

【Package Contents】 Includes a heart-shaped lock diary, key, and pen. The stylish vintage design of the heart-shaped lock with a key allows you to securely protect your secrets.
【Compact Size】 B6 size (20 × 15 cm), easy to carry, with thick inner pages. With 360 pages/180 sheets, it provides ample space for an entire year.
【High-Quality Materials】 This diary features a PU leather cover and a decorative yet functional heart-shaped lock. The high-polished heart design is both classic and appealing. The inner pages are made of 100g Daolin paper, offering a smooth and double-sided writing experience.
【User-Friendly Design】 The leather cover of the notebook includes two card slots for convenient storage. A portable pen holder ensures you always have your pen at hand, enabling writing anytime and anywhere.
【Ideal Gift】 A unique and thoughtful gift for any occasion, such as Christmas, Valentine’s Day, Mother’s Day, Father’s Day, wedding anniversaries, birthdays, or graduations. Perfect for moms, teachers, children, daughters, wives, friends, and sisters.

Pop Secret Diary for Girls with Invisible Pen, 7.5x5.4 Inch 160 Pages Heart Fidget Girls Diary with Lock & Invisible Ink Double-end Pen Kids Notebook Gifts for Girls Birthday Presents 5-12 Year Old

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Why We Love It

Encourages creativity and self-expression.
Safe and fun invisible ink.
Perfect size for girls' privacy.

Main Highlights

【 GIFT FOR GIRLS】- Diary with Lock and Heart Pop Fidget, comes with 1 Double-end Invisible Ink Pen – Blue Ink Ballpoint Pen. The kids notebook set is perfect girls gifts for age 6-12, to encourage them to explore creativity writing, and keep their secret memory
【SECRET DIARY FOR GIRLS】 - It’s 7.5x5.4 inches(19x13.8cm) perfect size for kids diary with lock and keys. A funny pop fidget kids toys on the cute GRL-PWR hardcover, it makes a soft popping sound when pushed in and popped out the bubbles, this journal for girls is fun and stress relief,every girl deserves this cute stuff
【GIRL JOURNALS LINED PAGES】 - This notebooks for kids is 160 pages with lined (80 sheets), in thick white paper. Using the double-end invisible magic pen and ballpoint pen, kids can write their diary and keep their secret from peeking eyes
【SAFE INVISIBLE INK PEN】- It is a very magic and funny invisible ink pen with double end! Kids loves to hide their messages on the notebooks with invisible pen, their secret only shown when shinning with the magic light on top. They also can write the daily diary with the blue ink ballpoint too. This invisible pen ink is washable and harmless
【STURDY BINDING NOTEBOOK】- Sturdy hardcover and sewn binding of the girls notebook, lightweight and easy to carry in kids backpack. It can be opened flat for both pages, comfortable to writing, drawing and coloring

CIOUYAOS Heart Shaped diary with Lock and Diamond Pen, Journal Notebook with Key for Women, Secret Diary for Girls, Waterproof Pink Pu Leather Cover A5 Size Notepad, 240 Pages Thick Lined Note Book

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Why We Love It

Locks to protect secrets.
Smooth, waterproof PU leather.
Compact and easy to carry.

Main Highlights

❤【You Will Get】Pink Heart Shaped lock notebook*1, Lock key*1, diamond metal pen*1. Whenever we finish writing the text I want to write, we can immediately lock it to protect your secrets. The diamond metal pen feels good, and the refill can be replaced.
❤【Material】The notebook uses PU leather as the shell, which feels smooth and looks more advanced. The PU leather case is also waterproof, which can effectively protect the paper. The paper is all wood pulp paper, which is smooth and does not absorb ink.
❤【Size】The notebook is thick, with 240 pages in A5 size. The diary is small and exquisite and easy to carry. You can put it in your backpack when you go out and record your life at any time.
❤【Beautiful Gift Set】This gift set can be used as a Christmas, Valentine's day, birthday or graduation gift. It is also a thoughtful gift for mothers, teachers and children that will impress them.
❤【Inner design】The side of the notebook is designed with a place to insert a pen. When we don't need to use the pen, we can directly insert the pen on the side, which is not only convenient but also prevents the pen from being lost.

Diary with Lock for Girls, A5 PU Leather Notebook with Lock, Secret Diary for Girls, Heart Shaped Lock Journal with Key, 144 Sheets Password Lock Notebook with Pen for Travel Diary Office Notepad,Pink

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Why We Love It

Adorable heart-shaped lock design.
Includes pen for easy writing.
Perfect gift for any occasion.

Main Highlights

【Adorable Diary with Lock for Personal Use】: This lockable diary features a heart-shaped lock, adding a cute and secure touch to your journaling. The rose pink color and PU leather cover make it a perfect secret diary for girls and women.
【Complete Lockable Notebook Set】: The set includes a diary with lock for girls and a pink crystal ballpoint pen, providing everything you need to start writing. The 144 sheets of high-quality paper ensure ample space for your thoughts and ideas.
【Secure and Stylish Secret Diary for Girls】: The password lock notebook ensures your entries remain private, while the heart-shaped lock adds a charming design. This PU leather journal with lock is ideal for writing, gifting, or personal use.
【Compact and Portable Lockable Diary】: Measuring 18x13.5x2.5 cm/7.09x5.31x0.98 in, this diary with lock is lightweight and easy to carry. The PU leather cover and pink design make it a cute and functional accessory for school, travel, or home use.
【Thoughtful Gift Lockable Notebook】: Whether for birthdays, Christmas, or self-gifting, this secret diary with lock is a meaningful present. The heart-shaped lock and pink crystal pen make it a girly and aesthetic choice for girls and women.

WERNNSAI Sequins Secret Diary for Girls with Lock and Keys, Mermaid Journal Gift Set for Girls A5 Travel School Office Notebook with Pen Bracelet Key-chain Birthday Presents Age 5-10 Year

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Why We Love It

Perfect for all ages.
Includes lock for privacy.
Handmade reversible sequins design.

Main Highlights

GREAT MERMAID DIARY:Perfect gift for all ages! It’s great for writing memories, taking notes, travel journal, project planner, diaries secrets. Enough size to take anywhere
UNIQUE DESIGN: Designed and manufactured by ourselves. Advanced printing process, and treated with manual techniques. Handmade reversible sequins in front and back, it can DIY different words or patterns.Shinny Blue sequins and fade-less
DURABLE AND FUNCTIONAL: Crafted with high-quality materials, our A5-sized, 160 pages (80 sheets) diary features lined pages suitable for both writing and drawing. Comes with lock and keys, keep safe to privacy protection diary books
KIDS SECRET DIARY: Kids always hope to have a special journal to write their thoughts, their dreams, and their secrets. This package comes with a lock to give her enough privacy
CHRISTMAS BITRTHDAY GIFT SET: Definitely a big package! Get 4pcs one time including sequins notebook, mermaid scale ballpoint pen, bracelet, key-chain and an exquisite packaging.

9.0

Superb

We scanned 1071 products

We reviewed these offers relevant to the Lock And Key Diary within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like MGGAO, Nicpro, JIALILI, Insights, heavenlife, GINMLYDA, CIOUYAOS, Tearmier, WERNNSAI, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Lock And Key Diary in the market, we considered we took a deep dive into 5356 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is MGGAO Diary with Lock for Writing, PU Hardcover Leather Locked Journal, B6 Personal Organizer for Men Women, 288 Pages 100gsm Ruled Paper. We love many things about this product by MGGAO. What sets it apart from the competition is Beautiful design enhances aesthetic appeal. , Durable leather feels luxurious. , Heart-shaped lock secures secrets. .
The best value product for most shoppers and where user satisfaction is continuously the highest is MGGAO Diary With Lock, Locked Journal for Women Girls, Refillable Water-Proof PU Leather Journal with 224 Lined Paper, B6 Secret Personal Daily Journal, Stylish Silver Locking Diary by MGGAO based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Lock And Key Diary and the best cost-to-value ratio is heavenlife Lock Journal with Pen B6, Vintage Diary with Lock and Key, PU Leather Notebook, 180/360 Pages, Heart Shaped Lock for Women Girls Kids (Purple)at heavenlife with a 43% discount.
Our list of the best Lock And Key Diary is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Lock And Key Diary in The UK

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We concluded that: