Ultramarinos
Seafood · Belgrano, Buenos Aires
Restaurant in Buenos Aires, Argentina
Book with PearlThe Read
Atlantic Coast Sourcing
Price
$$
Chef
Maximiliano Rossi
Dress
Smart Casual
Why go
Ultramarinos is the Buenos Aires pick when the group wants a $$ seafood dinner instead of another grill-led meal. The Michelin Plate recognition gives it credibility, but the stronger reason to book is practicality: easy booking, late dinner hours, enough focus to reward a second or third visit.
About Ultramarinos
Ultramarinos is a Buenos Aires seafood booking to consider when a repeat night needs a different lane. The Michelin Plate recognition in 2025 is a useful trust signal here, the essentials are direct: seafood, chef/owner Maximiliano Rossi, $$ pricing, smart casual dress, service centered on evenings with lunch listed Thursday through Saturday.
The restaurant makes the clearest sense as a dinner plan. Service starts at 8 PM on open evenings and runs until 1 AM, so Ultramarinos can work for diners who want a later seafood meal in Buenos Aires. For someone who has already been once, the practical reason to return is not an invented signature dish or format, but the focus: this is one of the city's seafood options, positioned at a moderate price level and recognized with a Michelin Plate in 2025.
Seafood is the reason to return, not just the category label
Chef/owner Maximiliano Rossi is the name attached to the restaurant. The practical read is that Ultramarinos is worth using for what Buenos Aires visitors and regulars may want when they are planning a seafood-focused booking that can carry the evening.
Price is part of the appeal. At $$, this sits in a useful middle zone: serious enough for a planned dinner, not so expensive that it has to be saved only for a major occasion. The Michelin Plate helps validate the booking, but it does not by itself turn the restaurant into a formal fine-dining commitment.
Use it for late dinners and seafood plans
The schedule favors night diners, with service starting at 8 PM on open evenings and lunch listed only on Thursday, Friday, Saturday. Dinner is the stronger default if your plan depends on the restaurant's late hours. Lunch can work on the days it is offered, from 12 to 3 PM. Sunday is not an option, so weekend planning means Friday or Saturday rather than leaving it to the last minute.
In a Buenos Aires itinerary, Ultramarinos is best treated as a seafood answer when the group wants a seafood-focused meal. For broader planning around the city, use the Buenos Aires restaurants guide, then keep other categories separate with the Buenos Aires bars guide, hotels guide, experiences guide, wineries guide.
If the goal is a wider Buenos Aires food itinerary, pair this seafood night with different dining directions rather than duplicating it. Sucre, El Pobre Luis, La Más Querida, Cachita, Evelia are also useful names to compare when deciding whether Ultramarinos is the right fit for a seafood-led meal.
Planning details
- Location
- Arribeños 1980, C1428 Cdad. Autónoma de Buenos Aires, Argentina
- Website
- ultramarinos.meitre.com
- Phone
- +54 11 3386-8642
The take
The Take
The Vibe
Ultramarinos sits quietly in Belgrano’s residential grid, favoring neighborhood rhythms over theatrical dining. It reads as an understated local address where smaller frontages and regulars shape the room; the experience is reserved and unshowy rather than performative. The kitchen makes that restraint purposeful, centering Argentine coastal ingredients and direct cooking techniques so the food does the speaking. The result is a charming, relaxed spot for diners who appreciate focused seafood cooking without the fuss of destination dining—an understated counterpoint to Buenos Aires’s louder parrilla scene.
Best For
Ultramarinos is well suited to intimate evenings and special meals where seafood is the point of attention. Its neighborhood scale works for date nights and celebratory dinners that prefer quiet, ingredient-focused cooking over spectacle. Because the restaurant leans on local regulars and a restrained pace, it also suits anyone seeking a relaxed, grown-up meal rather than tourist-oriented dining. Travelers who are specifically interested in Argentine seafood will find the menu rewarding, but the venue principally serves Belgrano locals and diners after a thoughtful, coastal-driven dinner.
Ordering Tips
Lean into the seafood program and ask the staff about the day’s catches that reflect Argentina’s long coastline. Begin with signature or standout plates—Paseo Marino, grilled_fish_cachete and the krill_chicharrones are notable mentions—and order a selection to share so you can sample several preparations. Given the kitchen’s focus on coastal species and direct cooking, prioritize freshness and simplicity: let the natural flavor of the fish guide your choices and consult servers for recommendations about what’s best that day.
Venue details
Ambiance
High-ceilinged contemporary dining room with dim lighting focused on tables, open kitchen bar for immersive viewing, and relaxed cocktail bar area allowing conversational volume.
Tags
Vibe
Best For
Experience
Sourcing
At the Table
- Dress Code
- Smart Casual
- Noise Level
- Conversational
- Service Style
- Upscale Casual
- Meal Pacing
- Leisurely
- Capacity
- Small
Signature Dishes
- Paseo Marino
- grilled_fish_cachete
- krill_chicharrones
Planning details
Location
Arribeños 1980, C1428 Cdad. Autónoma de Buenos Aires, Argentina · Directions
Recognition and awards
Also consider
If you cannot get a table
For another $$ dinner with a broader contemporary angle, try Sucre. For the same price tier but a different craving, Evelia is the Italian alternative.
If the group wants a more traditionally Buenos Aires meat-led meal instead, move the search to El Pobre Luis.
Restaurant context
How it compares
Choose Ultramarinos over El Pobre Luis when the group wants seafood rather than a meat-led Buenos Aires dinner. It is also the cleaner fit than La Más Querida for a lighter late meal, especially if this is a second dinner after a heavier night elsewhere.
Sucre is the closest price comparison because it is also $$, but the decision is about format: Sucre is the contemporary choice, while Ultramarinos is the seafood-specific one. For diners who want Italian at the same $$ level, Evelia is the better cross-shop; for a more open-ended Buenos Aires night, Cachita belongs on the list.
Booking difficulty gives Ultramarinos a useful edge. It works as the easier, lower-friction plan when the group wants a recognized restaurant without making the reservation the center of the trip. For ambiance, use it when a late seafood dinner sounds more appealing than a grill room or a broader contemporary menu.
Around this place
Discover more on Pearl
Unlock the full Ultramarinos guide in Pearl, including awards, comparisons, FAQs, planning details, and nearby places.
Compare Ultramarinos
| Venue | Location | Cuisine | Awards | Price |
|---|---|---|---|---|
| Ultramarinos | Buenos Aires | Seafood | Michelin Guide Buenos Aires & Mendoza 20262025 Michelin Plate | $$ |
| La Más Querida | Buenos Aires | No published awards | ; | ; |
| El Pobre Luis | Buenos Aires | No published awards | ; | ; |
| Sucre | Buenos Aires | Contemporary | 2025 Michelin Plate | $$ |
| Cachita | Buenos Aires | No published awards | ; | ; |
| Evelia | Buenos Aires | Italian | Michelin Guide Buenos Aires & Mendoza 20262025 Michelin Plate | $$ |
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How Ultramarinos Buenos Aires compares with similar nearby venues.
FAQ
Frequently Asked Questions
What should a first-timer know about Ultramarinos?
Start with the timing: dinner runs from 8 PM to 1 AM on open evenings, lunch is listed Thursday through Saturday from 12 to 3 PM. At $$ with a Michelin Plate (2025), Ultramarinos is a practical Buenos Aires pick if seafood is the goal and a later seating works for your schedule.
Does Ultramarinos handle dietary restrictions?
Ultramarinos is a seafood restaurant, so check directly with the restaurant before committing if you avoid fish, shellfish, or other seafood. The kitchen is led by Maximiliano Rossi, but specific allergy accommodations or dietary policies should be confirmed with the restaurant.
Is lunch or dinner better at Ultramarinos?
Dinner is the broader choice because Ultramarinos serves from 8 PM to 1 AM Monday through Saturday. Lunch is more limited, available Thursday through Saturday from 12 to 3 PM. Choose lunch only on those listed days; choose dinner when you want the restaurant's evening schedule.
What are alternatives to Ultramarinos in Buenos Aires?
If you want a broader comparison, look at Sucre, El Pobre Luis, La Más Querida, Cachita, Evelia while deciding what kind of Buenos Aires meal you are planning. Ultramarinos is the pick when seafood and the Michelin Plate matter most.
Is Ultramarinos good for a special occasion?
Ultramarinos can work for a special occasion if the occasion is about a seafood dinner in Buenos Aires at the $$ level. The Michelin Plate (2025) gives it enough recognition to consider for a celebration meal, especially if the group is comfortable with a smart casual setting and late dinner hours.
