Some of the best pizza I've ever had, for the price, it's reasonable since each slice is huge. I love the spicy ranch sauce too. The service was good, and the staff were very thoughtful of customers! It was honestly some of the best food I had in college at CU. I love that it was open late at night and had so much variety, and that it felt like a Boulder classic! read more

I ordered for delivery of my favorite pizza: pepperoni, fresh jalapeno and mushrooms. It was delivered earlier than they said and it was piping hot and fresh! The crust is chewy and the ingredients high quality. Just add red wine and a garden patio! Yum! read more

Cosmo's Pizza - Pizza Near Me - Boulder, Colorado

Amazingly scrumptious pizza and a casual, inviting atmosphere to enjoy it in! Rivals my other favorite by-the-slice NY Style pizza chain in Denver - Sliceworks! read more

See all

Love Cosmo's Pizza! I get their breadsticks and meat lovers pizza. I like to get it on the road. I'll call ahead and order the breadsticks and then order my slice in person. That way they can all be done at the same time. Service is great. Food is consistently on point. We eat here every day! read more

Cosmo's Pizza - Pizza Near Me - Boulder, Colorado

Great pizza, fast delivery every time we order from here. The pizza gets here hot and tasty!

I am a pretty huge fan of Cosmo's pizza, I am not gonna lie, the pizza slices are massive, and also on the cheaper side. The taste overall isn't amazing, but there's nothing really wrong with it, definitely quality za. The service here is typically extremely fast and friendly, and the ambiance is nothing spectacular, but nice overall. I am a pretty large fan of the spicy ranch that they have here as well, it goes great with the breadsticks/crust. read more

Great pizza. Although the lid didn't fit the custom plastic cup. Mmmm The girl at the counter was wonderful! read more

Cosmo's Pizza - a kitchen with a table and chairs - Pizza Near Me - Boulder, Colorado

Greasy blond haired guy:"One pepperoni!" *lady goes up to grabs it... Him: "that's not yours" Same guy: "one meat lovers!" Me: "Is this one mine?" Greasy blond haired guy: "I don't know. Did you order a meat lovers?" Me: "yup. Thanks for the hospitality." read more

Very good pizza, very tasty and nice and delicious the service was great.Very kind people.

People, people, if you are not from NYC or Connecticut, please stop commenting negatively about Cosmo's pizza...Cosmo's Pizza is as close to Brooklyn or NYC Pizzeria's you will get... Get the mushroom slice or plain slice, it's perfect.. A word of advice, order and eat there, the crust, it will be crispy, fluffy and light. If you take any pizza home in a box, you will have a soggy pizza. Lastly, make sure to bring your own Mountain Dew or fruit punch... read more

good salad . love the ranch and the spicy ranch dressing. quick service. would recommend. pizza is pre made so can't make modifications s read more

This pizza was $30. It's their specialty Greek pizza. Looks awful and tasted awful. Inflated prices while they employ students and pump out cheaply made pizza.... Shameful read more

Cosmo's Pizza - 16 Inch Large Pizza - Pizza Near Me - Boulder, Colorado

A lot of Boulder entitled whiners on here. Great place with a fair price. The pizza is hand tossed and tasty, toppings are liberal, and that dipping sauce is fantastic. I've always had excellent service. read more

We stopped at Cosmos last time I was in town and we absolutely loved it. We made sure to go again this trip and oh boy did it live up to the memory. The staff was super awesome and fun. They all seemed to enjoy their jobs. This always makes the experience better. The pizza is just like the pizza you get in NYC. NYC has some of the best pizza in the country so that is one of the best things I can say. If you're looking for pizza by the slice in the Boulder area, you must stop at Cosmos. read more

Cosmo's Pizza - Pizza Near Me - Boulder, Colorado

The customer service is so bad and the pizza is not delicious. Just bread tomato that's it for everything. This store is charging 24 or $23 just only for bread and tomato that socks read more

The pizza is great and a great price. However, the blonde 40 year old girl is awful. She yelled at her coworkers with people watching and was exceedingly rude to customers. I'm not sure if she was the manager or just a worker, either way she was a miserable person and should reconsider her profession. Awesome pizza though! read more

Where do I start about the wonderful place called cosmos. My immediate reaction stepping into the glorious place was wow. The vibes are off the charts. Diving into the food, tons of options at great prices. Highly recommend to not skimp on the spicy ranch. Lastly, the workers in this establishment are the most joyful people you'll meet. read more

The service doesnt make it worth going. place was clean and slices were good but the rude scraggle muffin guy working there makes it barely worth it. Makes one wonder if he spits in the food too? read more

$22 for the WORST most awful pizza me & my partner have EVER tried in our LIVES. Sauce was spicy & tasted weird. Bread was flat & chewy with no flavor. Vegan cheese was super sticky read more

Good, but does not stay open to posted hours listed on Google and storefront. Closed at midnight on Thursday 10/19 so they may need to update those but what they have posted here on Yelp seems right. read more

the pizza is great, by the slice is good but a whole pizza fresh will taste better. the spicy ranch is a no brainer. i will say the one thing that ALWAYS makes me regret buying pizza from this specific location, every single person working here has ZERO customer service skills and acts like me, the customer, is the problem for ordering ..... read more

Dude with a manbun was being an asshole to me and my buddy trying to order a full pizza when they close in 10 minutes. I too have worked in the fast food industry and know this is the worst thing to happen ever. I wouldve been fine if he just said they werent making full pies anymore but he all he said with a smug look on his face was thats kinda messed up and walked away. We only ordered 4 slices in the end to not get into anything deeper. Same dude then proceeded to throw 2 more pizzas in the oven read more

I was introduced to Cosmo's pizza this winter. Someone told me it's the best pizza in Colorado which is a strong statement, but I must say, I really am obsessed. I fell in love with the Maverick (pepperoni, bacon, cream cheese and jalapeños) and recently I've been adding banana peppers. The cream cheese makes it so creamy and I really just can't get enough of this pizza. I crave it constantly. But really the best part of Cosmo's is their home made spicy ranch, which I buy by the jar every time I go and put on absolutely everything, not just their pizza. I can't find anything like it anywhere else. I particularly like the location in Boulder on 30th because during COVID they have been taking very safe precautions (can't speak to other locations). They ask you the type of car you have when you call your order in and bring it out to you. They have been very accommodating. Beware that the largest size is VERY large - a party size, and if there are just two if you, you could go with the 16'. I could eat pizza every day of the week and I lived in NY for a few years and this is the best pizza I've had in the Denver/ Boulder area. read more

Cosmo's Pizza - Maverick with banana peppers - Pizza Near Me - Boulder, Colorado

See all

Went to Cosmos for a slice of pizza with some friends after a hike. They were busy since it was Saturday night but the staff was so friendly and helped keep the line moving and the pizzas coming! Hot, delicious, and a perfect place to swing by when you're hungry. I will definitely be returning. read more

Pleasant staff; clean dining area; pizza made right in front of you. Got the chicken bbq za. Sauce was a little sweet for our palate; however, tasty nonetheless. Will go back read more

Simply put, Cosmos Pizza is a Boulder staple. Anytime, either after class or late at night, two slices of Cosmos pizza will make you feel ready to take on any endeavor. At the price point there is no better way to fill your stomach. The staff is consistently kind and consistently efficient in dealing with rushes and large orders and most importantly, consistent in delivering high quality pies every time. Grab yourself a slice of jalapeño popper or pepperoni and dunk that bad boy in some spicy ranch. You will thank me. read more

Best pizza in boulder & Colorado. Good fast services while the master piece bakes in the great fire oven. Cool college vibes read more

Cosmo's Pizza - Pizza Near Me - Boulder, Colorado

After a 3 hour ride all over Boulder, on my Metropolitan Scooter, I was famished! Pizza was on my mind, and Cosmos was nearby. I pulled up to the front door, just as Aaronneg215 was handing a customer a pizza. I'm vegan, and asked Aaron if Cosmos was using vegan cheese yet. "YES! we are!", he replied. Score! I ordered a mushroom, onion, spinach and pineapple calzone with vegan cheese. Please hold the mozzarella and ricotta! When Aaron brought me my calzone in a pizza box, I looked in and found THE LARGEST calzone I've ever seen! How was I going to carry this home on my scooter? Well, they say "Where the R's a will there's a way.", and by the looks of Cosmo's calzone I sure had the will to make this work. Wedged on the floor of my scooter, between me feet, I easily road the 1 mile home. There I cut off a third of the calzone, and savored every last, delectable, gooey vegan cheesie bite. If you scoff at pineapple on a pizza or calzone, let me confirm you are missing out! Aside from the fantastic food, Cosmos has a team of fantastic front-of-the-house staff, like Aaron, who confirmed my order 4 times before sending it to the wizard chefs. Great costumer service, great price ( $20 for a calzone that'll feed me through dinner tomorrow!), great Covid-19 protocols (no indoor service or admittance by customers), and great tasting calzones! My neighborhood take-out dining options just doubled with the discovery of Cosmo's Vegan options. read more

Great vegan pizza! Great non-vegan pizza! Open late, and delivery always arrives early! Their spicy ranch is fire read more

Spicy ranch for the win! Massive slices, gooey cheese, and a chill atmosphere. At Cosmo's, you pay first and they bake it to order; that being said, they do have them pre-made and partial cooked. This place is perfect for grabbing a slice after work or after studying all day with your friends. Affordable by the slice, but the full size is a bit rich for my blood. They do offer great delivery deals if you call in! Cosmo's was always an experience when I attended CU Boulder, they've got multiple locations and dozens of great pizzas to try. Give it a shot and remember to tip! (Once they sang to me when I tipped!) read more

Fantastic food, fast service, good environment. Always good food very fair prices. Highly recommend.

Online order was ready on schedule (not always a given at other establishments these days). Very basic, but good pizza. Dave Portnoy would probably consider this drunk pizza, especially given it's close proximity to CU. read more

Cosmo's Pizza - a half eaten pizza in a box - Pizza Near Me - Boulder, Colorado

told the person at the front i wanted individual slices of pizza, she instead told me i should get a whole pie. i assume she was lazy and didnt want to do her job. Overall the nastiest shithole in boulder by far. read more

The pizza here is good but the main thing not to miss is the spicy ranch for dipping it in. I knocked off one start because it's boulder so it's common to get a college kid with a not so great attitude serving you but that's to be expected near CU! The seating is a little limited but this location is consistently less busy so you can usually still find a seat! Fast, good price, happy tummy! read more

Cosmo's Pizza - Pizza Near Me - Boulder, Colorado

I've been coming here for a very long time, and I'm finally sick and tired of being treated like it's an honor and pleasure to be served by you. Your pizza is mediocre at best, and your staff on average has piss poor attitudes. Why have I been patronizing you for so long? Because you were the only option most of the time. Your are offensive in every way. It boggles my mind how you are still in business. For those of you reading, do yourself a favor, skip this place and go to one of the many great pizza shops we have here in boulder. Brooklyn Pizza, Pizza Calore, Back Country Pizza...just to name a few. The level of stars that has the most votes for Cosmos is '1'. That should tell you something. read more

Pretty solid NY style pizza! I like that they also offer a dairy free alternative for those that need it/prefer it. Guy working the resister was super friendly also. read more

We all know Cosmo's is the place you go to when you've had a lot to drink and you just want some solid pizza. For that reason, Cosmos will always be the best. Dependable, cheesy, wonderful pizza at your fingertips. The 24 inch pizza with a JAR (JAR!!!) of spicy ranch (required) barely fits through a normal doorway and is so worth it. Delivery is quick, pizza is always hot. Maybe there's a bit of nostalgia here, but Cosmos will always hold a piece of my spicy ranch filled heart. read more

It's NY style pizza and yes, it's a little greasier, it's supposed to be. It's not gross like Pizza Hut or Dominoes, but don't expect Pizzeria Locale. If you want foodie pizza Boulder has many great choices. But for NY style regular old pizza, it's Cosmo's. The staff are always super friendly and the pizza is consistently good as well as being a great value. Pre-pandemic my youngest liked to eat in sometimes to "watch the college students." The staff were always so nice to him. These days it's delivery for us. Wait times are usually overestimated and the pizza always arrives fresh and hot. I've never had an order go wrong. read more

Cosmos is gas. Spicy ranch: gas. Atmosphere: lots of freshmen being loud Price: nah mofos hand out big ass slices don't stress What else??? Cosmos is goated. Boss lady pizza is arguably better pizza, but barely. Boss lady has terrible spicy ranch, cosmos make spicy ranch that makes you nut read more

A Boulder must, as there's a good reason why Cosmo's is so popular here, it's good and the prices are really fair. Since their remodeling a few years ago, this WillVill location is an even better visit, roomier and able to handle a rush. They cook to order, single slices available along with full pies, large selection, popular among students living across the street in dorm, and they deliver. Their spicy ranch sauce is really tasty, and their calzones are delicious. Friendly, highly personal service. I'm a native Chicagoan, so yes, a pizza snob, but this place totally works. Plenty of on-site, free parking. read more

Cosmo's Pizza - One of Cosmo's many offerings, a slice of sausage! - Pizza Near Me - Boulder, Colorado

See all