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, Orange, CA

O Sea

4.8
4.8
780 Reviews
$30 and under
Seafood

Make a reservation

2 people
7:00 PM
Booked 10 times today
Experiences are available.
  • Neighborhood gem
  • Great for fine wines
  • Good for special occasions
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, Contemporary American
  • Hours of operation
    Tue–Thu, Sun 11:30 am–8:30 pm Fri, Sat 11:30 am–9:00 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

What 780 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 is a seafood lover's paradise, consistently praised for its fresh, innovative dishes and exceptional service. Guests rave about the "amazing food" and "impeccable service," highlighting the inviting ambiance and extensive wine list. A standout spot for both casual dining and special occasions, O Sea never disappoints.

780 Reviews
  1. Tracey

    Orange County

    3 reviews

    5.0

    3 reviews

    Dined 2 days ago

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    We had a group of 11 for a late lunch. We ordered appetizers, main dishes, sides & dessert. Everyone was happy. The seafood dishes were great, even the non seafood fans loved their selections of grilled chicken. The food was fresh and the service was awesome. We asked our server for many suggestions . We are looking forward to dining at O SEA again!

    Is this helpful?

  2. Mark

    Orange County

    3 reviews

    vip
    5.0

    3 reviews

    Dined 6 days ago

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Always a great experience at O’Sea. Food is delicious, service is great.

    Is this helpful?

  3. Josie

    Los Angeles

    55 reviews

    vip
    5.0

    55 reviews

    Dined 6 days ago

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 4
    The food is consistently good. Service attentive and helpful. Would like to try one of the wine pairing dinners

    Is this helpful?

  4. Robin

    Los Angeles

    7 reviews

    3.0

    7 reviews

    Dined 7 days ago

    1. Overall 3
    2. Food 3
    3. Service 3
    4. Ambience 4
    Food was fine, but nothing special. Wouldn’t return.

    Is this helpful?

  5. Gregg

    Philadelphia

    29 reviews

    vip
    5.0

    29 reviews

    Dined on November 16, 2024

    1. Overall 5
    2. Food 5
    3. Service 4
    4. Ambience 4
    Great location in the orange circle----service was a bit spotty but overall very acceptable. Food outstanding, mussles were the best in the world, the poke bowl a bit meh. One of the best restaurants in the circle

    Is this helpful?

  6. Martin

    Los Angeles

    3 reviews

    vip
    5.0

    3 reviews

    Dined on November 13, 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Complete surprise! Fantastic food. Frankly underpriced. Great service. What a gem. We'll be back!

    Is this helpful?

  7. Yevgeniya

    Central Coast

    1 review

    5.0

    1 review

    Dined on November 11, 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Best place to eat in OC, food is so good and great service

    Is this helpful?

  8. Ingrid

    Los Angeles

    4 reviews

    5.0

    4 reviews

    Dined on November 3, 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Server was great, drinks were refreshing and the food was tasty AF!

    Is this helpful?

  9. Hoa

    San Francisco

    2 reviews

    5.0

    2 reviews

    Dined on November 3, 2024

    1. Overall 5
    2. Food 4
    3. Service 5
    4. Ambience 5
    Lovely place to dine at the Orange circle! My favorite dish is the curry mussels. Seafood here is always fresh!

    Is this helpful?

  10. Mike

    Sacramento

    47 reviews

    vip
    5.0

    47 reviews

    Dined on November 2, 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Second time visiting and food quality and service was as good as the first. Black cod was cooked perfectly, flaky and seasoned well. Starter of grilled avocado was exceptional. Will be back .

    Is this helpful?

FAQs

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

O Sea is rated 4.8 stars by 780 OpenTable diners.

O Sea 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 10 times today
Experiences are available.

Order delivery or takeout

Google Map for O Sea

109 S Glassell St, Orange, CA 92866-1421

Additional information

  • Cross street
    Chapman Ave and S Glassell Street
  • Neighborhood
    Orange
  • Hours of operation
    Tue–Thu, Sun 11:30 am–8:30 pm Fri, Sat 11:30 am–9:00 pm
  • Price
    $30 and under
  • Cuisines
    Seafood, Wine Bar, Contemporary American
  • 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