Osteria Der Belli is a warm, atmospheric restaurant in Trastevere, located in Piazza di Sant’Apollonia, just behind one of the neighborhood’s busiest and most beautiful areas. It is especially known for seafood and Sardinian-influenced dishes, while still sitting naturally inside the Trastevere dining scene. The official site lists the address as Piazza di Sant’Apollonia 11 and offers direct booking/contact options.
This is not the place I would frame as a pure old-school Roman pasta trattoria. It is better for travelers who want a more Mediterranean dinner in Trastevere: fresh fish, seafood pasta, wine, outdoor atmosphere and a slightly more polished feeling than the most casual tourist-heavy restaurants nearby.
Why it’s worth visiting
Osteria Der Belli is useful because Trastevere is beautiful but risky for food: many travelers arrive hungry, choose the first pretty place they see, and end up disappointed. This spot gives them a more intentional option in the neighborhood, especially if they want seafood rather than another carbonara. Tripadvisor’s restaurant description also notes that its menu leans toward fresh fish, with a mix of tradition and contemporary touches.
Best for
Seafood dinner, Trastevere evening, couples, groups, travelers who want something different from Roman pasta, outdoor dining when available.
What to order
Seafood pasta, fresh fish, Sardinian-influenced dishes, wine. If available, dishes like spaghetti alle vongole or fish of the day fit the restaurant’s identity well; The Infatuation highlights the shaded patio and seafood options such as spaghetti alle vongole and fish dishes.
Best time to go
Dinner, especially if you want a lively Trastevere atmosphere. Lunch can also work if you want a calmer meal.
Estimated time
1.5 to 2 hours.
Reservation needed
Recommended, especially for dinner or outdoor seating. Their official contact page includes a “Book a table” option and phone contacts.
Insider tip
Choose Osteria Der Belli when you want a Trastevere dinner that feels more seafood-focused and Mediterranean, not when your priority is the most traditional Roman pasta checklist.
Travel tip
Pair it with Basilica di Santa Maria in Trastevere, Bar San Calisto, Ponte Sisto, Isola Tiberina or a sunset walk toward Gianicolo. It works beautifully as part of an evening in Trastevere.
Local warning
Trastevere is full of restaurants that look charming from the outside. Do not choose only based on the prettiest table. For Osteria Der Belli specifically, check current reviews, opening times and menu before sending travelers there, because restaurant quality and service can vary over time.
Tourist level
Semi-famous / popular in Trastevere.
Budget
€€ to €€€
