Restaurant in Buenos Aires, Argentina

Ultramarinos

Name: Ultramarinos
Address: Arribeños 1980, C1428 Cdad. Autónoma de Buenos Aires, Argentina, Buenos Aires, AR
Telephone: +54 11 3386-8642
Price range: $$

100Pearl Points

Seafood, late

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Ultramarinos, Restaurant in Buenos Aires

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About Ultramarinos

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.

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 verified 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 confirmed 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 verified 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 confirmed 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.

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 are not verified here.

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.

Location

Arribeños 1980, C1428 Cdad. Autónoma de Buenos Aires, Argentina

Compare Ultramarinos

Ultramarinos Buenos Aires and similar venues

Venue	Location	Cuisine	Awards	Price
Ultramarinos	Buenos Aires	Seafood	Michelin Plate (2025)	$$
La Más Querida	Buenos Aires	,	,	,
El Pobre Luis	Buenos Aires	,	,	,
Sucre	Buenos Aires	Contemporary	,	$$
Cachita	Buenos Aires	,	,	,
Evelia	Buenos Aires	Italian	,	$$

How Ultramarinos Buenos Aires compares with similar nearby venues.

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.

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.