Boulder's largest lost and found network

Lost or found something in Boulder?

Report something lost or found and let our community help reunite it with their owners

How it works

Getting your lost item back or helping someone else is simple with our 3-step process

1. Post your item

Create a free listing with photos and details about your lost or found item. Our spam protection keeps the community safe.

2. Community helps

Our network across Boulder search and match lost items with found ones. Get notified when there's a potential match.

3. Get reunited

Connect directly with the person who found your item or claim the item you found. Arrange a safe meetup and celebrate the reunion!

Start your search

Search through thousands of lost and found items across Boulder

Recently reported

LOST

Black Sony WH-1000XM4 headphones with dent

I lost my black Sony WH-1000XM4 wireless headphones yesterday around 3pm near the Pearl Street Mall in Boulder. They're over-ear and in generally good condition, with a small dent on the right ear cup and a faded mountain sticker on the inside of the headband. I kept them in a black fabric case with a grey zipper, plus a silver USB-C cable tucked inside. They hold sentimental value—my sister got them for me, and I really need them back for daily commuting and editing sessions. If you found them around the Boulder Public Library area or along Pearl Street, please drop me a message.

Boulder
Dec 25, 2025
LOST

Ninja Blender with blue lid, 24oz jar

I lost my Ninja Professional Blender yesterday around 3pm near the Pearl Street Mall in Boulder. It's the black base model, 1000W, with a blue silicone lid and a 24-ounce glass jar with measurement lines. There's a tiny scratch on the metal ring near the blades and a small chip on the rim of the jar. It was a gift from my sister last Christmas, and I use it every morning for smoothies, so it means a lot to me. If anyone found it, I’d really appreciate getting it back.

Boulder
Dec 14, 2025
LOST

Lost green parakeet named Kiwi near Boulder Park, Boulder, Colorado.

I lost my little green parakeet named Kiwi while I was out in the Boulder Park today. He flew off when a loud noise startled him. He’s usually pretty friendly but may be hiding in the trees nearby. If found, please contact me. I miss him dearly!

Boulder Park, Boulder, Colorado, United States
Nov 15, 2025
LOST

Lost gold wedding band with polished finish near Chautauqua Park while hiking in Boulder.

I lost my gold wedding band while hiking near Chautauqua Park in Boulder on October 5th. I remember taking it off to apply sunscreen, and I must have dropped it. It's a simple, flat band with a polished finish, with a little bit of wear and tear. If found, it holds a lot of sentimental value for me.

Chautauqua Park, Boulder, Colorado, United States
Nov 04, 2025
LOST

Lost black Bose Bluetooth headphones with a scratch on the left ear cup and charging case near Chautauqua Park.

I lost my black Bose Bluetooth headphones while hiking around Chautauqua Park in Boulder on October 15th. I remember adjusting my hair and putting them in my bag, but somehow they've gone missing. They have a little scratch on the left ear cup, and the charging case is included. If found, please let me know!

Chautauqua Park, Boulder, CO, USA
Oct 20, 2025
FOUND

Black Ray-Ban Wayfarer glasses found

I found a pair of black Ray-Ban Wayfarer-style glasses this afternoon around 3:15 pm on Pearl Street Mall, right outside the Boulder Book Store near the 14th Street intersection. They're black matte plastic frames with a slim gold-tone bridge, medium size, and a tiny engraving 'AH' on the inside of the right temple. There's a small scratch on the left lens, and they came with a blue faux-leather case that's a bit worn around the zipper. If the owner can describe the engraving or the case, I'd love to return them to you.

Boulder
Dec 16, 2025
FOUND

Full-size violin in black case; Stentor Student II

I found a full-size violin this morning around 9:15am on the Pearl Street Mall, behind the Boulder Book Store near the creek path. It's a Stentor Student II violin, with a warm golden-brown varnish and a few light scratches on the back of the neck. The case is a black hard-shell with red velvet interior, a scuffed latch, and a small dent on the bottom edge. The bow hair looks intact but the tip is slightly worn. Inside the lid there's a blue Colorado Youth Orchestra sticker and the bow is engraved with 'A.R.' on the frog. I picked it up because I figured someone might be missing it and it means a lot to the player who owns it—hope to reunite it with its owner soon.

Boulder
Dec 10, 2025
FOUND

Found black drawstring bag with mountain logo containing personal items near Chautauqua Park, Boulder.

I found a black drawstring bag with a mountain logo on it while hiking near Chautauqua Park in Boulder. It looked fairly new and had some personal items inside, like a water bottle and a small notebook. There wasn't any contact info in it, so I'm hoping to find the owner!

Chautauqua Park, Boulder, CO, United States
Oct 29, 2025
FOUND

Found a set of wireless earbuds in a dark blue case at Chautauqua Park during a hike in Boulder.

I found a set of wireless earbuds in a dark blue case at Chautauqua Park while I was hiking on Saturday morning. They appeared to be in good condition and still charged. If someone lost their earbuds while enjoying the trails, please reach out so I can return them! It was a beautiful day in Boulder, and I hope to get these back to their owner.

Chautauqua Park, Boulder, Colorado, USA
Oct 19, 2025
FOUND

Found vibrant bongo drum with colorful designs left on a bench along Pearl Street.

I found this vibrant bongo drum while taking a walk along Pearl Street earlier this week. It seemed to have been left behind at one of the benches, and I can't help but think it belongs to someone who would miss it dearly. The drum has some colorful designs on it and is in good condition. If this sounds like your drum, please reach out to me!

Pearl Street, Boulder, CO, United States
Oct 18, 2025