Enable JavaScript to run this app.
Skip to main content
OpenTable logo
  1. Home
  2. United States
  3. Orange County
  4. North Orange County
  5. Orange
O Sea Interior - O SEA | seafood for thought, Orange, CA

O SEA | seafood for thought

4.8
4.8
794 Reviews
$30 and under
Seafood

Make a reservation

2 people
7:00 PM
Booked 14 times today
Experiences are available.
  • Neighborhood gem
  • Good for special occasions
  • Healthy
O SEA — a seafood restaurant of time and place in the historic Plaza district of Old Towne Orange, recently recognized by the Los Angeles Times as the Best Seafood Restaurant in Orange County and by Wine Spectator Magazine with an Award of Excellence. Something fun, something different, something fresh — O SEA is where seafood is headed. Think salmon ceviche in coconut leche de tigre, tuna poke in gochujang dressing, crispy oaxacan hot shrimp, west coast oysters on the half with thai red curry and tajin’d lime.

Responsibly-procured, best-in-class products, served consistently and at a value, with deeply craveable and seasonal flavors — welcome to O SEA.

We can’t wait to serve you.

Order delivery or takeout

Additional information

  • Dining style
    Casual Elegant
  • Price
    $30 and under
  • Cuisines
    Seafood, Wine Bar, Breakfast
  • Hours of operation
    Lunch Tue–Fri 11:30 am–4:00 pm Sat, Sun 10:00 am–3:00 pm Brunch Sat, Sun 10:00 am–3:00 pm Happy Hour Tue–Fri 2:00 pm–5:00 pm Dinner Tue–Thu 4:00 pm–8:30 pm Fri 4:00 pm–9:00 pm Sat 3:00 pm–9:00 pm Sun 3:00 pm–8:30 pm
  • Phone number
    (714) 363-3309
  • Payment options
    AMEX, Discover, Mastercard, Visa
  • Dress code
    Casual Dress
  • Executive chef
    German Mejia
  • Neighborhood
    Orange
  • Cross street
    Chapman Ave and S Glassell Street
  • Parking details
    Public Lot
  • Additional
    Beer, BYO Wine, Gender Neutral Restroom, Gluten-free Options, Happy Hour, Non-Smoking, Patio/Outdoor Dining, Takeout, Vegan, Wheelchair Access, Wine
Gift card

Gift card

Send gift cards instantly by email or print to present in person.

Send a gift card

Experiences

  • Happy Hour at O SEA - Weekdays from 2-5pm

    Multiple dates available
    Orange's best Happy Hour is back at O SEA - join us every weekday afternoon (Tuesday-Friday) from 2-5pm for 50% off our entire bottled wine list, $1.45 oysters, and a selection of menu favorites - spicy tuna on crispy rice, salmon ceviche, and a lil cheeseburger - just to name a few. We look forward to serving you!
    Happy Hour at O SEA - Weekdays from 2-5pm Photo
  • Weekend Brunch at O SEA!

    Multiple dates available
    You asked...we listened! BRUNCH has arrived at O SEA! Join us every Saturday and Sunday from 10am-3pm for a collection of Orange's favorite breakfast snackies. Think Brioche French Toast 'Tres Leches', Sweet & Smoky Chilaquiles with Salsa Macha, Breakfast BLT Greens, and Cinnamon Buns with Pistachio, Blood Orange, and Green Cardamom. Bevies? The best Mimosa in Old Towne Orange, maybe a Mango Michelada, maybe an Iced Lavender Latte. Whatever floats your boat. Brunch not quite your thing? We serve our regular Lunch menu from 10am-3pm as well. We look forward to serving you!
    Weekend Brunch at O SEA! Photo
  • 'Feast of the Seven Fishes' Holiday Menu

    $78.95 per person

    Dec 20, 2024 - Dec 24, 2024
    Celebrate Christmas with O SEA this year as we welcome back our Feast of the Seven Fishes holiday menu - available for dinner service on Friday 12/20, Saturday 12/21, Sunday 12/22, and Tuesday 12/24. Enjoy this classic Sicilian American holiday tradition showcasing seven different kinds of seafood across four different courses. O SEA will be offering wine pairings optionally as well. Please note that this menu is available for dinner service only; we will not be serving the holiday menu during lunch or brunch hours. We will also be serving our regular dinner menu in addition to the holiday pre-set menu. There is no prepayment required for booking; payment can be submitted night-of for Feast of the Seven Fishes.

What 794 people are saying

Overall ratings and reviews

Reviews can only be made by diners who have eaten at this restaurant

4.8
4.8 based on recent ratings
  • 4.8Food
  • 4.8Service
  • 4.8Ambience
  • 4.5Value

NoiseModerate

Loved For

  • Orange County

    Seafood

  • North Orange County

    Great for fine wines

  • North Orange County

    Seafood

Review summary

AI-generated from verified diner reviews
O Sea in Orange offers a "delightful dining experience" with its "fresh and inventive" seafood menu and an "extensive wine selection." Guests rave about the "attentive service" and the "charming ambiance." Highlights include dishes like the "curry mussels" and "halibut in chili verde sauce," making it a "must-visit" spot.

794 Reviews
  1. Liz

    VIP

    Salt Lake City

    9 reviews

    5.0

    9 reviews

    Dined today

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    I love this restaurant! I would come more often if it was closer!!!

    Is this helpful?

  2. Darrell

    Central Coast

    24 reviews

    5.0

    24 reviews

    Dined today

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    We had a wonderful and tasty meal of seven fishes with wine pairings. Each fish item was the freshest and tastiest I have had and we buy our home fish from Santa Monica Seafood which is excellent but not as good as O Sea! My wife and I also did the wine pairings and enjoyed each wine and was relieved that none were too large. I apologized to Mike that we have not visited O Sea since last Christmas! Our New Years Resolution is to visit more often! Maybe O Sea could have more fish themed dinners like the opening day of trout season in CA…the first Saturday in April.

    Is this helpful?

  3. andria

    VIP

    San Francisco

    6 reviews

    5.0

    6 reviews

    Dined 1 day ago

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    wonderful 7 fishes feast! very special evening and great and friendly service! love their wine list too!

    Is this helpful?

  4. Bob And Manita

    VIP

    Orange County

    172 reviews

    5.0

    172 reviews

    Dined 2 days ago

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 4
    Food and service was great. No matter what you get it is delicious.

    Is this helpful?

  5. Jamie

    VIP

    Houston

    27 reviews

    5.0

    27 reviews

    Dined 4 days ago

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    This restaurant is consistently good. We can depend on a delicious meal here. We went early to dine and the service was excellent. We were met by a woman who greeted us with joy, which is always a good start. The menu is easy to follow, and it seems we gravitate to our favorites. Him - Fish & Chips. O Sea makes the most delicious French Fries. I had the Black Cod with Sweet Potatoes, but not ordinary SP, these were bathed in a delicious sauce with layers of flavor. Perfect for swathing a few French Fries through. Divine!

    Is this helpful?

  6. Richard

    VIP

    Orange County

    17 reviews

    5.0

    17 reviews

    Dined 4 days ago

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Four of us enjoyed delicious cod, tuna, and swordfish dishes. And the chowder is always good. Great place.

    Is this helpful?

  7. Walter

    Los Angeles

    3 reviews

    5.0

    3 reviews

    Dined 7 days ago

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 4
    The butternut squash with Seabass was excellent along with attentive service. the back entrance from the parking leads through a spotless kitchen which is quite welcoming. We had a warm and wonderful evening 

    Is this helpful?

  8. James

    Orange County

    8 reviews

    5.0

    8 reviews

    Dined on December 13, 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 4
    We ordered 3 appetizers and clam chowder cups. Plenty for us. Wonderful experience

    Is this helpful?

  9. Kim

    VIP

    New York City

    20 reviews

    5.0

    20 reviews

    Dined on December 7, 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Great atmosphere and service. Food delicious! Classic Christmas music was at the perfect noise level.

    Is this helpful?

  10. Kristen

    Orange County

    3 reviews

    5.0

    3 reviews

    Dined on December 6, 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    The best restaurant in old town Orange. The food is always amazing and the menu is fantastic. Their wine selection is also the best in town. Service, food, ambiance and vibe are unmatched!

    Is this helpful?

FAQs

O SEA | seafood for thought offers delivery in partnership with Postmates and Uber Eats. O SEA | seafood for thought also offers takeout which you can order by calling the restaurant at (714) 363-3309.

O SEA | seafood for thought is rated 4.8 stars by 794 OpenTable diners.

O SEA | seafood for thought does offer gift cards which you can purchase here.

Yes, you can generally book this restaurant by choosing the date, time and party size on OpenTable.

Make a reservation

2 people
7:00 PM
Booked 14 times today
Experiences are available.

Order delivery or takeout

Google Map for O SEA | seafood for thought

109 S Glassell St, Orange, CA 92866-1421

Additional information

  • Cross street
    Chapman Ave and S Glassell Street
  • Neighborhood
    Orange
  • Hours of operation
    Lunch Tue–Fri 11:30 am–4:00 pm Sat, Sun 10:00 am–3:00 pm Brunch Sat, Sun 10:00 am–3:00 pm Happy Hour Tue–Fri 2:00 pm–5:00 pm Dinner Tue–Thu 4:00 pm–8:30 pm Fri 4:00 pm–9:00 pm Sat 3:00 pm–9:00 pm Sun 3:00 pm–8:30 pm
  • Price
    $30 and under
  • Cuisines
    Seafood, Wine Bar, Breakfast
  • Dining style
    Casual Elegant
  • Dress code
    Casual Dress
  • Parking details
    Public Lot
  • Payment options
    AMEX, Discover, Mastercard, Visa
  • Executive chef
    German Mejia
  • Additional
    Beer, BYO Wine, Gender Neutral Restroom, Gluten-free Options, Happy Hour, Non-Smoking, Patio/Outdoor Dining, Takeout, Vegan, Wheelchair Access, Wine
Gift card

Gift card

Send gift cards instantly by email or print to present in person.

Send a gift card
  • Privacy Policy
  • Terms of Use
  • Cookies and Interest-Based Ads
  • Cookie Preferences
Copyright © 2024 OpenTable, Inc. 1 Montgomery St Ste 500, San Francisco CA 94104 - All rights reserved.
OpenTable is part of Booking Holdings, the world leader in online travel and related services.
Booking Logo
Priceline Logo
KAYAK Logo
Agoda Logo
OpenTable Logo