A Helsinki institution in Punavuori known for its onion steak, fried Baltic herring and herring platters in a retro dining room.
Sea Horse (Merihevonen) is one of the best-loved classic Finnish restaurants in Helsinki, set at Kapteeninkatu 11 in the Eira and Punavuori area of southern Helsinki, Finland. The kitchen specialises in the kind of home-style Finnish cooking that many residents grew up with, and the menu has changed relatively little over the years, which is a large part of its appeal. The best-known dish is the onion steak, a beef cut served with fried onions and a rich sauce, and it is the item most frequently recommended to first-time visitors. Fried Baltic herring, a staple of the Finnish table, is served crisp with mashed potato, while herring platters offer a cold, pickled introduction to the national flavours. Other emblematic plates include vorschmack, the minced lamb and herring dish of Finnish-Russian origin, and Viennese schnitzel, which has long been a fixture of old-school Helsinki dining rooms. The dining room has a deliberately retro character, with a nostalgic, slightly nautical feel that suits the restaurant's name, and the mood is relaxed and unpretentious rather than formal; there is no strict dress code. Noise levels are moderate and rise on busy Friday and Saturday evenings. The beverage list covers Finnish beer, wine and classic spirits that pair naturally with herring and with the heartier meat dishes. Prices sit in the mid-range for Helsinki, so a main course typically costs in the high teens to mid-twenties in euros. Opening hours run from midday on most days, with a later start on Saturdays and Sundays, and the kitchen closes about an hour and a half before the restaurant itself. Reservations are recommended, particularly for weekend dinners and for groups, and can be made through the restaurant website, by phone on +358 9 628 169 or by email. Booking a few days ahead is usually sufficient outside the Christmas season, when tables for the traditional seasonal menus fill much earlier. The restaurant is closed on 24 and 25 December 2026. Its location in Punavuori puts it within walking distance of the Design District, Kaivopuisto Park and the Market Square, making it a practical stop after a day of sightseeing in central Helsinki.
| Price | $$ |
|---|---|
| Hours | Mon-Tue 12:00-22:00, Wed-Fri 12:00-23:00, Sat 15:00-23:00, Sun 15:00-22:00 (kitchen closes 1.5 hours before closing; closed 24-25 December 2026) |
| Reservations | Recommended; book online at seahorse.fi, by phone +358 9 628 169, or email sales@seahorse.fi |
| Address | Kapteeninkatu 11, 00140 Helsinki |
Signature dishes
- Onion steak
- Fried Baltic herring
- Vorschmack
- Viennese schnitzel
Good to know
- Known for
- Classic Finnish home cooking; known for onion steak
Location
Kapteeninkatu 11, 00140 Helsinki
60.1586, 24.9449 View on map
Highlights
- Signature onion steak, the dish most associated with the restaurant
- Crisp fried Baltic herring and classic herring platters
- Retro, nautical-feeling dining room on Kapteeninkatu in Punavuori
- Traditional vorschmack and Viennese schnitzel on the menu
Tips for visiting
- Book ahead for Friday and Saturday evenings, by phone or via seahorse.fi
- Order the onion steak for the house signature; herring platters suit lighter appetites
- The kitchen closes about 1.5 hours before closing, so arrive early for dinner
- Check festive-season hours; the restaurant is closed 24-25 December 2026
- Walk from the Design District or Kaivopuisto for an easy post-sightseeing meal
When to visit
Dinner on a weekday evening is calmer; weekends and the pre-Christmas season are the busiest periods.
Accessibility
Step-free access and wheelchair-accessible seating should be confirmed directly with the restaurant by phone before visiting, as older Helsinki buildings can have an entrance step.
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Frequently asked questions
What is Sea Horse best known for?
Sea Horse is best known for its onion steak and for traditional Finnish dishes such as fried Baltic herring and vorschmack. It is regarded as a Helsinki classic.
Is a reservation needed at Sea Horse?
Reservations are recommended, especially for weekend evenings and groups. They can be made online at seahorse.fi, by phone on +358 9 628 169 or by email.
Where is Sea Horse located?
The restaurant is at Kapteeninkatu 11 in the Eira and Punavuori area of Helsinki, a short walk from the Design District and Kaivopuisto Park.
How expensive is Sea Horse?
It is mid-range by Helsinki standards, with main courses generally in the high teens to mid-twenties in euros.