Cosmo's Pizza

Boulder, CO · Pizza restaurant

Rating
4.4/5
★★★★☆ 4.4
Reviews
20
Rank in Boulder
#113
of 393 restaurants
City Percentile
45%
rating percentile
Address
Cosmo's Pizza, 659 30th St, Boulder, CO 80303
Phone
(303) 447-3278
Website
cosmospizza.com
Status
Open · Closes 2 AM

Cosmo's Pizza is a restaurant located in Boulder, CO. It is one of 393 restaurants listed in Boulder. Its 4.4-star rating matches the Boulder city average of 4.3 stars. There are 10 photos associated with this location.

Hours

Friday11 AM–2 AM

Customer Reviews

★★★★★ 5.0 DM · Aug 2025

I've been hearing about the all-famous Cosmo's from my daughter for the past 2 years while she's been attending CU Boulder, and on 1 Aug 2025, I finally got to try it for dinner. Living in Las Vegas (LV), which happens to be one of the biggest foodie capitals of the world, I'm always skeptical of pizza restaurants at other locations because I've had my fair share of outstanding pizzas in LV. Not to mention, I'm not a huge pizza fan in the first place so I don't normally pick pizza as my first choice for a dinner meal - but, it's good once in a while and especially when your daughter recommends it. With that said, when I walked in the restaurant, I was in awe with the pizza slices on display...they were giant! That immediately got my attention because I love value; however, at that point, I

★★★★☆ 4.0 A. P. · Sep 2025

We were welcomed and served quickly, and the atmosphere is fun and youthful, with lots of students around. The pizza itself was tasty, but I have one major concern: the bottom side of the dough had a strange burnt or dirty smell, almost as if the baking tray or surface hadn’t been properly cleaned. That really affected the flavor. Other than that, it’s a decent place with good pizza.

★★★★★ 5.0 Neko Bellic · Sep 2025

Absolutely the go to place! Been coming here since college and Absolutely hits home everytime I stop in. Love the staff. Love the pizza. Get spicy ranch, trust me.

★★★★★ 5.0 V.J. · Dec 2025

Cass, Londy, and I stopped into Cosmos tonight instead of doing our usual delivery. We ordered the 24-inch pepperoni, sausage, and black olive pizza, plus a tiramisu that honestly should come with a permission slip. The pizza is always good, but dining in just hits on another level. The crust was perfect, the toppings were stacked just right, and the whole thing reminded us why this place has its own loyal orbit of regulars. Big respect to the staff tonight. They were moving nonstop, keeping everything flowing without missing a beat. You could tell the team had pride in what they were doing, and it showed in every detail. Cosmos... thanks for a great meal and great energy. You’ve got your own little corner of the universe dialed in.

★★★★★ 5.0 Andrew Schneider · Feb 2026

Great service. Very solid NY style pizza.

Accessibility & Amenities

✓ Wheelchair Accessible Entrance ✓ Wheelchair Accessible Parking Lot ✓ Wheelchair Accessible Restroom ✓ Wheelchair Accessible Seating

Services

Pizza restaurantDelivery Restaurant

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This listing is informational. Contact the business directly to verify credentials, services, and availability.