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Situated in Boston’s vibrant Back Bay neighborhood, One Charles Street South is home to a modern Mediterranean eatery known as Ostra. Led by Chef/Owner Jamie Mammano and Executive Chef Mitchell Randall, our restaurant draws inspiration from the abundant seafood offerings of both local New England waters and the coastal regions of Europe. With a strong emphasis on specialty seafood sourced from the Mediterranean and various parts of the United States, our culinary creations showcase the natural essence and delightful flavors of each dish through their light preparation.
Sophisticated venue serving fish-focused Mediterranean fare, in addition to a bar.
Hours
| Monday | 5:30–8:30 PM |
| Tuesday | 5:30–8:30 PM |
| Wednesday | 5:30–8:30 PM |
| Thursday | 5:30–8:30 PM |
| Friday | 5:30–9:30 PM |
| Saturday | 5:30–9:30 PM |
| Sunday | 5:30–8:30 PM |
Address and Contact Information
Address: 1 Charles St S, Boston, MA 02116
Phone: (617) 421-1200
Website: https://ostraboston.com/
Menu Photos
Order and Reservations
Reservations: ostraboston.comtripleseat.com
Photo Gallery
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Reviews
Matt Coughlin
This was our second Valentine’s Day at Ostra and at this point it might just be a yearly tradition. The vibe is exactly what you want for the night. Dim lighting, candles everywhere, lively but still intimate enough to enjoy your conversation. It feels special without being over the top.
We started with oysters which were super fresh and a great way to kick things off. The Chestnut Cavatelli with braised wagyu beef cheeks was the highlight of the meal. Rich, comforting, and the kind of pasta you don’t want to share. We also grabbed shishito peppers in between courses which worked perfectly as a palate reset.
Steak came out cooked perfectly and the plate felt thoughtful without trying too hard. Nothing overly complicated, just really well executed food.
Service was smooth and paced well even on a packed Valentine’s Day night, which says a lot.
Overall Ostra just does date night right. Great energy, great food, and a place that actually feels worth going back to for special occasions. We’ll definitely be keeping the tradition going next year.
… moreWe started with oysters which were super fresh and a great way to kick things off. The Chestnut Cavatelli with braised wagyu beef cheeks was the highlight of the meal. Rich, comforting, and the kind of pasta you don’t want to share. We also grabbed shishito peppers in between courses which worked perfectly as a palate reset.
Steak came out cooked perfectly and the plate felt thoughtful without trying too hard. Nothing overly complicated, just really well executed food.
Service was smooth and paced well even on a packed Valentine’s Day night, which says a lot.
Overall Ostra just does date night right. Great energy, great food, and a place that actually feels worth going back to for special occasions. We’ll definitely be keeping the tradition going next year.
calvin yong
⭐⭐⭐⭐⭐ Outstanding Food, Exceptional Leadership
The food at OSTRA was truly delicious. The Boston lobster for $135 was absolutely worth it — so much sweet, generous meat. But the real surprise star was the gnocchi with truffle — rich, aromatic, and perfectly executed.
Service was excellent, especially from JJ (Juan), who took great care of us throughout the meal.
What really impressed me, however, was Trevor. He came over personally to congratulate us on our honeymoon and surprised us with a complimentary dessert. Later, I noticed he was doing the same for many other tables — greeting guests, making everyone feel welcome, helping serve, and even pouring wine himself.
That level of hands-on involvement says a lot. When I asked JJ, I learned Trevor is actually the General Manager. That was truly impressive. This is what real leadership looks like — present, humble, and service-driven.
Management should pay close attention — he’s a keeper and deserves recognition (and a raise).
We will definitely be back.
… moreThe food at OSTRA was truly delicious. The Boston lobster for $135 was absolutely worth it — so much sweet, generous meat. But the real surprise star was the gnocchi with truffle — rich, aromatic, and perfectly executed.
Service was excellent, especially from JJ (Juan), who took great care of us throughout the meal.
What really impressed me, however, was Trevor. He came over personally to congratulate us on our honeymoon and surprised us with a complimentary dessert. Later, I noticed he was doing the same for many other tables — greeting guests, making everyone feel welcome, helping serve, and even pouring wine himself.
That level of hands-on involvement says a lot. When I asked JJ, I learned Trevor is actually the General Manager. That was truly impressive. This is what real leadership looks like — present, humble, and service-driven.
Management should pay close attention — he’s a keeper and deserves recognition (and a raise).
We will definitely be back.
LEA
We made a reservation after an event at Wang Theater. We ordered Grilled Spanish Octopus – $32 (Lemon, Olive Oil, Crispy Salt Capers, Raw Sweet Vidalias). It was very good and fresh. We had a Tagliatelle with white truffle $100. It was delicious – but the serving size is too small for the price. We also ordered the Salt Crust Branzino
$150 (Extra Virgin Olive Oil, Lemon, Snipped Herbs, Seasonal Accompaniments For Two… Please Allow 50 minutes). Mushroom and seasonal veggies. The fish was excellent, but the lemon flavor overpowered the flavor of the branzino fish. Regardless, it was very good! The bread was warm and delicious.
Overall Rating: 5
Environment: Very clean, inviting, quiet
We highly recommend it!
Make a reservation because it gets busy.
All staff members were excellent. Very attentive and prompt.
… more$150 (Extra Virgin Olive Oil, Lemon, Snipped Herbs, Seasonal Accompaniments For Two… Please Allow 50 minutes). Mushroom and seasonal veggies. The fish was excellent, but the lemon flavor overpowered the flavor of the branzino fish. Regardless, it was very good! The bread was warm and delicious.
Overall Rating: 5
Environment: Very clean, inviting, quiet
We highly recommend it!
Make a reservation because it gets busy.
All staff members were excellent. Very attentive and prompt.
Yinzy
Solid seafood in a clean, modern setting. I had a great time here. The oysters are incredibly fresh and clean, which is a big plus. Their paella is also a standout — rich, flavorful, and highly recommended. The monkfish, however, is just okay; pretty average and nothing particularly memorable. I’m not sure if they still offer the seabass tartare, but it used to be quite good. As for the desserts, they look impressive, but the taste is just average.
By the way, we mentioned that we wanted to share everything, and they actually split almost every dish into two portions for us — which is much sweet. Big big plus.
… moreBy the way, we mentioned that we wanted to share everything, and they actually split almost every dish into two portions for us — which is much sweet. Big big plus.
Eric D
I have travelled the world extensively over 40 years. I ate at all restaurants ranging from pop & mom’s to Michelin three stars. This is my honest review of the restaurant Ostra in Boston MA, USA.
A seafood-focused restaurant where we celebrated my birthday dinner.
We started with the lobster pasta, served with a nicely seasoned sauce. The pasta itself was good, though we would have appreciated a slightly more generous portion of lobster compared to the pasta and mushrooms. The lobster pieces were of good quality, just not very abundant — understandable given market prices, but still leaving us wishing for a bit more seafood.
Next, we had the monkfish with mushrooms, which was well cooked, though the seasoning was a touch too strong for my taste; a more delicate balance would have made the dish shine even more.
For dessert, the restaurant surprised me with a birthday inscription and a small candle — a very thoughtful gesture. Interestingly, the dessert turned out to be the highlight of the evening: simple, well-executed, and delicious.
The service was friendly and efficient, and the setting is charming, with high ceilings and well-spaced tables that provide a pleasant sense of privacy.
Overall, a nice seafood restaurant with attentive service and an attractive dining room.
… moreA seafood-focused restaurant where we celebrated my birthday dinner.
We started with the lobster pasta, served with a nicely seasoned sauce. The pasta itself was good, though we would have appreciated a slightly more generous portion of lobster compared to the pasta and mushrooms. The lobster pieces were of good quality, just not very abundant — understandable given market prices, but still leaving us wishing for a bit more seafood.
Next, we had the monkfish with mushrooms, which was well cooked, though the seasoning was a touch too strong for my taste; a more delicate balance would have made the dish shine even more.
For dessert, the restaurant surprised me with a birthday inscription and a small candle — a very thoughtful gesture. Interestingly, the dessert turned out to be the highlight of the evening: simple, well-executed, and delicious.
The service was friendly and efficient, and the setting is charming, with high ceilings and well-spaced tables that provide a pleasant sense of privacy.
Overall, a nice seafood restaurant with attentive service and an attractive dining room.
Khanh Nguyễn
I recently had the pleasure of dining at this fine dining restaurant, and overall, it was a memorable experience. The food is absolutely terrific—beautifully presented, thoughtfully crafted, and bursting with flavor. Every dish showcased a high level of culinary skill and attention to detail, making it well worth savoring.
However, one thing to note is the wait time. We had to wait approximately 40 to 50 minutes before the food is served, which was longer than expected for a place of this caliber. While the ambiance and service helped make the wait more tolerable, it’s something to keep in mind if you’re planning to visit during peak hours.
That said, once food is served, the experience truly shines. If you’re a food lover with a bit of patience, this restaurant is definitely worth the visit.
… moreHowever, one thing to note is the wait time. We had to wait approximately 40 to 50 minutes before the food is served, which was longer than expected for a place of this caliber. While the ambiance and service helped make the wait more tolerable, it’s something to keep in mind if you’re planning to visit during peak hours.
That said, once food is served, the experience truly shines. If you’re a food lover with a bit of patience, this restaurant is definitely worth the visit.
Anthony Vu
I have walked past Ostra 100 times and never thought to go in. That was a mistake. This is now one of my favorite restaurants in Boston and easily the first place I would bring anyone visiting the city.
We started with oysters 5/5 and razor clams 5/5. Both were incredibly fresh, clean, and thoughtfully prepared. The ricotta gnocchetti followed and was an easy 5/5. Rich, balanced, and comforting without feeling heavy.
For mains, the monkfish 5/5 and sea bream 5/5 were outstanding. Both were cooked perfectly and showcased how precise and confident the kitchen is.
Dessert sealed it. The panna cotta 5/5 was light and elegant, and the warm chocolate tart 5/5 was exactly what you want to end a great meal. A crisp glass of Chablis 5/5 tied everything together perfectly.
The service matched the food. I do not remember our server’s name, but he was excellent. Attentive, calm, and genuinely cared about the experience. Even on a busy night, the entire team worked seamlessly together. The GM, Trevor, stopped by and was truly hospitable. Nothing felt forced.
We were there to celebrate walking into 2026, and Ostra helped make it memorable. It is hard to build a great team, and even harder to sustain one, and Ostra has clearly figured it out. I cannot believe it took me this long to come here. I will absolutely be back.
… moreWe started with oysters 5/5 and razor clams 5/5. Both were incredibly fresh, clean, and thoughtfully prepared. The ricotta gnocchetti followed and was an easy 5/5. Rich, balanced, and comforting without feeling heavy.
For mains, the monkfish 5/5 and sea bream 5/5 were outstanding. Both were cooked perfectly and showcased how precise and confident the kitchen is.
Dessert sealed it. The panna cotta 5/5 was light and elegant, and the warm chocolate tart 5/5 was exactly what you want to end a great meal. A crisp glass of Chablis 5/5 tied everything together perfectly.
The service matched the food. I do not remember our server’s name, but he was excellent. Attentive, calm, and genuinely cared about the experience. Even on a busy night, the entire team worked seamlessly together. The GM, Trevor, stopped by and was truly hospitable. Nothing felt forced.
We were there to celebrate walking into 2026, and Ostra helped make it memorable. It is hard to build a great team, and even harder to sustain one, and Ostra has clearly figured it out. I cannot believe it took me this long to come here. I will absolutely be back.
sara sherindil
10/10! Such a delightful experience for valentine’s day. Our server Chris made everything so perfect for us. He took care of all our dietary restrictions. Thank you so much, Ostra and Chris!
… moreRaymond Lui
Great atmosphere in the heart of Boston. Excellent service. Sea bass tartare is a must order for the appetizer. Can’t go wrong with any of the seafood. I personally really like the sea crusted branzino and the monkfish.
… moreKelly B
Went for a date night dinner and the staff were so kind and attentive. They even split our entrées for us which made everything feel seamless.
FRESH BREAD
Complimentary, topped with fried onions and served with butter in olive oil. Warm and fragrant.
OSSETRA CAVIAR
Served with house brioche, blinis, shaved eggs, onions, and basil. Luxurious and perfectly balanced.
GRILLED SPANISH OCTOPUS
Lemon, olive oil, crispy salt capers, raw sweet Vidalias. Tender with a beautiful char.
SAFFRON TAGLIATELLE
Maine lobster, beech mushrooms, black truffle. Silky, aromatic, and rich.
PRIME SIRLOIN
Served with pommes purée, hen of the woods mushrooms, roasted heirloom carrots, sweet potato, cipollini onions, broccolini, vin cotto, and maitre d’hôtel butter. Every side was incredible.
BROILED TWIN MAINE LOBSTER
Three pounds, with hen of the woods mushrooms, Yukon potatoes, celeriac espuma, drawn butter, and lemon. Sweet, perfectly cooked, and decadent.
CHOCOLATE TORTE
Molten center with decadent whipped cream.
COMPLIMENTARY CHOCOLATE TRUFFLES
Rich smooth and the perfect final bite. Such a thoughtful touch to end an already amazing dinner.
Such an unforgettable dinner from start to finish! Highly recommend for a fancy dinner.
… moreFRESH BREAD
Complimentary, topped with fried onions and served with butter in olive oil. Warm and fragrant.
OSSETRA CAVIAR
Served with house brioche, blinis, shaved eggs, onions, and basil. Luxurious and perfectly balanced.
GRILLED SPANISH OCTOPUS
Lemon, olive oil, crispy salt capers, raw sweet Vidalias. Tender with a beautiful char.
SAFFRON TAGLIATELLE
Maine lobster, beech mushrooms, black truffle. Silky, aromatic, and rich.
PRIME SIRLOIN
Served with pommes purée, hen of the woods mushrooms, roasted heirloom carrots, sweet potato, cipollini onions, broccolini, vin cotto, and maitre d’hôtel butter. Every side was incredible.
BROILED TWIN MAINE LOBSTER
Three pounds, with hen of the woods mushrooms, Yukon potatoes, celeriac espuma, drawn butter, and lemon. Sweet, perfectly cooked, and decadent.
CHOCOLATE TORTE
Molten center with decadent whipped cream.
COMPLIMENTARY CHOCOLATE TRUFFLES
Rich smooth and the perfect final bite. Such a thoughtful touch to end an already amazing dinner.
Such an unforgettable dinner from start to finish! Highly recommend for a fancy dinner.