The mothership. This is the site of the slice shop that started it all in 2009. The original shop has expanded since then to feature a full-service dining room and bar on one side, and Enzo – our cozy wine and pizza bar – on the other. A great location for a quick pre-show slice and a beer, or a night dining out with family and friends.
Many customers praised the pizza for its unique flavors and excellent crust, while some reported issues with greasiness and overcooking.
Service Issues
There were numerous complaints about slow service, disorganization, and poor customer interactions, though some staff were noted as friendly and attentive.
Atmosphere
The restaurant has a casual vibe and is dog-friendly, but some reviews mentioned cleanliness issues and a chaotic environment.
Dietary Options
Customers appreciated the availability of vegan and gluten-free options, highlighting the restaurant's flexibility in accommodating dietary needs.
RW
Ryan White
Jan 3, 2026
5.0
Just go and get blown away!
TS
Tracie Shea
Dec 29, 2025
5.0
Pizza perfection! Thin crust, crispy but not dry. Amazing sauce!! Friendly staff, quick service.
JS
Joe Sauer
Dec 22, 2025
5.0
Excellent pizza in great service in a funky old school Pizza pub.
TC
Tiffanie Taylor Connors
Dec 21, 2025
4.0
This was the butternut squash, ricotta and cranberries pizza 🍕 it was amazing. It's seasonal, so you have to get it there soon before it's gone to enjoy it.
Staff were very friendly, personable, chatty, suggestive with food and drink recommendations, and overall just great service.
JB
Joshua Bilous-Manalo
Dec 4, 2025
5.0
Tiny lil shop making REALLY good NY style pizza. Slices are huge! They sell by the slice as well. Some interesting varieties too. This place makes pizza right.
What types of services does OTTO offer for pickup or delivery?
OTTO offers in-store pickup service for customers.
Where is OTTO located?
OTTO is located at 576 Congress St, Portland, ME 04101, USA.
What are the regular opening hours for OTTO?
OTTO is open Monday to Wednesday and Sunday from 11:00 AM to 9:00 PM, and Thursday to Saturday from 11:00 AM to 10:00 PM.
Does OTTO have a full-service dining room and bar?
Yes, OTTO features a full-service dining room and bar on one side, with a cozy wine and pizza bar called Enzo on the other side.
What types of meals and menu options does OTTO serve?
OTTO serves dinner including comfort food, vegetarian, and vegan options, along with beer, wine, and happy hour drinks.
Does OTTO accept reservations or cater events?
OTTO accepts catering orders but does not accept or require reservations.
What payment methods are accepted at OTTO?
OTTO accepts American Express, Mastercard, Visa, cash, credit cards, debit cards, and mobile NFC payments.
Which nearby places can I visit before or after dining at OTTO?
Near OTTO, you can visit Otto Enzo Pizzeria for wine and pizza, Mathew's Pub for drinks, and Empire Comedy Club for entertainment.
Is there parking available near OTTO?
While OTTO does not have valet parking or wheelchair accessible parking, nearby areas may have parking options. OTTO is located conveniently in the Arts District of Portland, ME.
What are some other types of businesses around OTTO?
Nearby you will find various businesses such as Satya Sanctuary beauty salon, Springer’s Jewelers, Strange Maine antique store, and Congress Square Plaza historic landmark, offering diverse experiences around your visit to OTTO.