Thornton, CO - Lost Dogs, Cats & Pets - PawBoost

Thornton, CO - Lost Dogs, Cats & Pets - PawBoost We share lost & found pet alerts for Thornton. We also share found dogs, found cats, and found pets. Do you have a lost pet in Thornton?

Report a lost pet here: pawboost.com/fb/thornton_co

Your Thornton area lost dog, lost cat, or lost pet will be shared here after you create your report. Report it to PawBoost here: https://www.pawboost.com/fb/thornton_co

Please LIKE this page so you can be in on the search when a lost dog, lost cat, lost bird & other missing pets are lost in the Thornton area. We also share found dogs, found cat

s, found birds, and other found pets to this page. Together, we can help more stray animals get home safe :)

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Best of luck!!

🚨 Tripp was LOST YESTERDAY in Brighton, CO 80602 near 124th and Quebec.Please spread the word for this lost dog by shari...
08/30/2026

🚨 Tripp was LOST YESTERDAY in Brighton, CO 80602 near 124th and Quebec.
Please spread the word for this lost dog by sharing this post.

💬 Owner's Message: "Please help!"

🐾 Description: "All black, thick grey electric fence collar"

🔗 For more info or to contact Tripp's owner, click here: https://www.pawboost.com/p/73322666

📣 Lost or found a pet? Report it to PawBoost here: https://www.pawboost.com/l/rpl

⚠️ WARNING: Please be cautious of users offering ‘pet tracking services’ in comments. We recommend only working with local shelters and verified organizations. Never send money to unknown services.

🚨 This cat was SIGHTED YESTERDAY in Thornton, CO 80229 near Lambertson farms open space.Please spread the word for this ...
08/30/2026

🚨 This cat was SIGHTED YESTERDAY in Thornton, CO 80229 near Lambertson farms open space.
Please spread the word for this found cat by sharing this post.

🐾 Description: "Green eyes tabby with little white on chest and paws "

🔗 For more info or to contact this cat's finder, click here: https://www.pawboost.com/p/73322537

📣 Lost or found a pet? Report it to PawBoost here: https://www.pawboost.com/l/rpl

⚠️ WARNING: Please be cautious of users offering ‘pet tracking services’ in comments. We recommend only working with local shelters and verified organizations. Never send money to unknown services.

UPDATE: REUNITED!! Ky is home safe & sound after 7 hours, 45 minutes :)🚨 Ky was LOST TODAY in Thornton, CO 80229 near Do...
08/28/2026

UPDATE: REUNITED!! Ky is home safe & sound after 7 hours, 45 minutes :)

🚨 Ky was LOST TODAY in Thornton, CO 80229 near Downing Street.
Please spread the word for this lost dog by sharing this post.

🐾 Description: "Has a pink collar"

🔗 For more info or to contact Ky's owner, click here: https://www.pawboost.com/p/73315627

📣 Lost or found a pet? Report it to PawBoost here: https://www.pawboost.com/l/rpl

⚠️ WARNING: Please be cautious of users offering ‘pet tracking services’ in comments. We recommend only working with local shelters and verified organizations. Never send money to unknown services.

🚨 This dog was FOUND YESTERDAY in Thornton, CO 80602 near Aspen Reserve park (120th and Quebec).Please spread the word f...
08/28/2026

🚨 This dog was FOUND YESTERDAY in Thornton, CO 80602 near Aspen Reserve park (120th and Quebec).
Please spread the word for this found dog by sharing this post.

🐾 Description: "May be Maltipu"

🔗 For more info or to contact this dog's finder, click here: https://www.pawboost.com/p/73314871

📣 Lost or found a pet? Report it to PawBoost here: https://www.pawboost.com/l/rpl

⚠️ WARNING: Please be cautious of users offering ‘pet tracking services’ in comments. We recommend only working with local shelters and verified organizations. Never send money to unknown services.

🚨 Kenai was LOST YESTERDAY in Westminster, CO 80234 near Home Farm Neigbhood, near Big Dry Creek Park.Please spread the ...
08/27/2026

🚨 Kenai was LOST YESTERDAY in Westminster, CO 80234 near Home Farm Neigbhood, near Big Dry Creek Park.
Please spread the word for this lost dog by sharing this post.

💬 Owner's Message: "Please help me find him. I am devastated "

🐾 Description: "Purple collar, white chest, caramel/golden coat, 17lbs, 2 years old "

🔗 For more info or to contact Kenai's owner, click here: https://www.pawboost.com/p/73312433

📣 Lost or found a pet? Report it to PawBoost here: https://www.pawboost.com/l/rpl

⚠️ WARNING: Please be cautious of users offering ‘pet tracking services’ in comments. We recommend only working with local shelters and verified organizations. Never send money to unknown services.

UPDATE: REUNITED!! Rugar is home safe & sound after 1 hours, 5 minutes :)"THANK YOU EVERYONE!!"-Rugar's Owner🚨 Rugar was...
08/27/2026

UPDATE: REUNITED!! Rugar is home safe & sound after 1 hours, 5 minutes :)

"THANK YOU EVERYONE!!"
-Rugar's Owner
🚨 Rugar was LOST TODAY in Thornton, CO 80241 near Eagleview Elementary.
Please spread the word for this lost dog by sharing this post.

💬 Owner's Message: "Hi I posted in NextDoor but my black lab escaped from our backyard. He is very friendly he’s been seen running around Park Village neighborhood my husband is currently looking for him. He is very friendly and will respond to his name. Please contact me if you see him! Animal control was also on the lookout for him. "

🐾 Description: "Black lab no collar "

🔗 For more info or to contact Rugar's owner, click here: https://www.pawboost.com/p/73312164

📣 Lost or found a pet? Report it to PawBoost here: https://www.pawboost.com/l/rpl

⚠️ WARNING: Please be cautious of users offering ‘pet tracking services’ in comments. We recommend only working with local shelters and verified organizations. Never send money to unknown services.

UPDATE: REUNITED!! Kaykay & Sky is home safe & sound after 1 hours, 55 minutes :)🚨 Kaykay & Sky was LOST YESTERDAY in Th...
08/27/2026

UPDATE: REUNITED!! Kaykay & Sky is home safe & sound after 1 hours, 55 minutes :)

🚨 Kaykay & Sky was LOST YESTERDAY in Thornton, CO 80241 near Summit grove pkwy.
Please spread the word for this lost dog by sharing this post.

💬 Owner's Message: "Please if you see our girls give me a call I have been out looking for them but no luck they got out between 10 pm taking out trash or 4 am when son left for work my kids will be devasted if I can’t not find them they have no idea yet"

🐾 Description: "Blue Merle’s mom n daughter"

🔗 For more info or to contact Kaykay & Sky's owner, click here: https://www.pawboost.com/p/73311781

👀 Neighbors in Thornton may have seen Kaykay & Sky. Please check yards, garages, sheds, and security cameras nearby.

📣 Lost or found a pet? Report it to PawBoost here: https://www.pawboost.com/l/rpl

⚠️ WARNING: Please be cautious of users offering ‘pet tracking services’ in comments. We recommend only working with local shelters and verified organizations. Never send money to unknown services.

🚨 Pepper was LOST TODAY in Thornton, CO 80233 near 104th and Steele.Please spread the word for this lost dog by sharing ...
08/25/2026

🚨 Pepper was LOST TODAY in Thornton, CO 80233 near 104th and Steele.
Please spread the word for this lost dog by sharing this post.

💬 Owner's Message: "Lost skiddish dog. Newly adopted in July from Riverdale. Please call me if found."

🐾 Description: "Black and white"

🔗 For more info or to contact Pepper's owner, click here: https://www.pawboost.com/p/73305695

📣 Lost or found a pet? Report it to PawBoost here: https://www.pawboost.com/l/rpl

⚠️ WARNING: Please be cautious of users offering ‘pet tracking services’ in comments. We recommend only working with local shelters and verified organizations. Never send money to unknown services.

🚨 Update: Pepper was SIGHTED on August 25, 2026 in Thornton, CO 80229 near Yorkborough Park.

💬 "Received message on app of sighting this morning but not sure when person seen Pepper."

🚨 Shakira was LOST August 22, 2026 in Thornton, CO 80241 near 120th Ave and Holly St..Please spread the word for this lo...
08/25/2026

🚨 Shakira was LOST August 22, 2026 in Thornton, CO 80241 near 120th Ave and Holly St..
Please spread the word for this lost cat by sharing this post.

💬 Owner's Message: "Hey neighbors! Our kitty has been missing for days. She never wanders too far from home and we all miss her very much. If anyone has seen her, please let me know. Her name is Shakira, and she does respond to her name. She's about 12 years old. Any information helps. Thanks friends! 💙"

🐾 Description: "Brown tabby with green eyes"

🔗 For more info or to contact Shakira's owner, click here: https://www.pawboost.com/p/73305470

📣 Lost or found a pet? Report it to PawBoost here: https://www.pawboost.com/l/rpl

⚠️ WARNING: Please be cautious of users offering ‘pet tracking services’ in comments. We recommend only working with local shelters and verified organizations. Never send money to unknown services.

UPDATE: REUNITED!! Bailey is home safe & sound after 6 hours, 25 minutes :)🚨 Bailey was LOST TODAY in Denver, CO 80233 n...
08/24/2026

UPDATE: REUNITED!! Bailey is home safe & sound after 6 hours, 25 minutes :)

🚨 Bailey was LOST TODAY in Denver, CO 80233 near 117th and Holly.
Please spread the word for this lost dog by sharing this post.

🐾 Description: "Hybrid color husky, one half blue and brown eye,"

🔗 For more info or to contact Bailey's owner, click here: https://www.pawboost.com/p/73300441

📣 Lost or found a pet? Report it to PawBoost here: https://www.pawboost.com/l/rpl

⚠️ WARNING: Please be cautious of users offering ‘pet tracking services’ in comments. We recommend only working with local shelters and verified organizations. Never send money to unknown services.

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