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O Sea Interior - O SEA | seafood for thought, Orange, CA

O SEA | seafood for thought

4.8
4.8
788 Reviews
$30 and under
Seafood

Make a booking

2 people
19:00
Booked 13 times today
Experiences are available.
  • Neighbourhood 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 11:30–16:00 Sat, Sun 10:00–15:00 Brunch Sat, Sun 10:00–15:00 Happy Hour Tue–Fri 14:00–17:00 Dinner Tue–Thu 16:00–20:30 Fri 16:00–21:00 Sat 15:00–21:00 Sun 15:00–20:30
  • Phone number
    (714) 363-3309
  • Payment Options
    AMEX, Discover, Mastercard, Visa
  • Dress code
    Casual Dress
  • Executive Chef
    German Mejia
  • Area
    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, Takeaway, Vegan, Wheelchair Access, Wine
Gift card

Gift card

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Experiences

  • 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
  • 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
  • 'Feast of the Seven Fishes' Holiday Menu

    US$78.95 per person

    20 Dec 2024 - 24 Dec 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 788 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.

788 Reviews
  1. Walter

    Los Angeles

    3 reviews

    5.0

    3 reviews

    Dined 2 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 

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  2. James

    Orange County

    8 reviews

    5.0

    8 reviews

    Dined 5 days ago

    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?

  3. Kim

    VIP

    New York City

    20 reviews

    5.0

    20 reviews

    Dined on 7 December 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.

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  4. Kristen

    Orange County

    3 reviews

    5.0

    3 reviews

    Dined on 6 December 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!

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  5. debbie

    Orange County

    3 reviews

    5.0

    3 reviews

    Dined on 2 December 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Great food & service! Looking forward to returning

    Is this helpful?

  6. Alex

    VIP

    Orange County

    3 reviews

    5.0

    3 reviews

    Dined on 30 November 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Mike and his team are absolutely incredible. Fantastic food coupled with an award winning Wine Spectator-rated wine list, the place is a must go!! One of our favorite spots in all of Southern California!

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  7. Jake

    Los Angeles

    2 reviews

    5.0

    2 reviews

    Dined on 28 November 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Always fresh and delicious seafood with great wine options too! Super friendly service every time we dine here.

    Is this helpful?

  8. Clare

    VIP

    San Francisco

    2 reviews

    5.0

    2 reviews

    Dined on 23 November 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 4
    Fantastic food. Worth a visit if you are in town. I travel a lot and this place is one of my top five places in the world

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  9. Tracey

    Orange County

    3 reviews

    5.0

    3 reviews

    Dined on 22 November 2024

    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!

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  10. Mark

    VIP

    Orange County

    3 reviews

    5.0

    3 reviews

    Dined on 18 November 2024

    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?

FAQs

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

O SEA | seafood for thought is rated 4.8 stars by 788 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 booking

2 people
19:00
Booked 13 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
  • Area
    Orange
  • Hours of Operation
    Lunch Tue–Fri 11:30–16:00 Sat, Sun 10:00–15:00 Brunch Sat, Sun 10:00–15:00 Happy Hour Tue–Fri 14:00–17:00 Dinner Tue–Thu 16:00–20:30 Fri 16:00–21:00 Sat 15:00–21:00 Sun 15:00–20:30
  • 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, Takeaway, Vegan, Wheelchair Access, Wine
Gift card

Gift card

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

Send a gift card
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