OB Square

13832 Red Hill Ave #4637, Tustin, CA 92780, United States
+1 714-486-1338
$$$ Korean restaurant
(167 Reviews)

Welcome to OB Square, a vibrant Korean restaurant nestled in Tustin, CA, where flavors collide and culinary traditions come alive. This delightful establishment is more than just a spot to grab a meal; it’s an experience—a pulsating blend of a lively atmosphere with authentic Korean fare that keeps food lovers coming back for more.

As you step inside OB Square, you’ll be greeted by the warm smiles of the staff, whose passion for service is evident from the moment you arrive. This establishment offers a unique dining experience that blends the flavors of Korea with a lively, pub-like vibe. It can get quite spirited with laughter and conversations filling the air, making it an ideal destination for a night out with friends or a casual meal with family.

What truly sets OB Square apart is its menu. Dive into an array of delicious options, starting with their Cucumber Salad at $8.95, a refreshing starter that captures crunchiness and zest. For those craving something heartier, try the Fried Garlic Chicken Wings, celebrated as some of the best in the area, known for their savory crunch and juicy interior—a must-try according to satisfied customers. Pair these with the comforting Kimchi Fried Rice and finish your meal with Clam Soup that promises a warm embrace from the first spoonful.

OB Square is particularly famous for its OB Chicken Wings, which many enthusiasts rave about. Customers like 'Andy Narendra' highlight the perfect balance of crispy exteriors with tender, flavorful meat on the inside—truly a feast for the senses!

Another appealing aspect is the restaurant's unique offerings, including private karaoke rooms for those looking to add a little entertainment to their dining experience. Customers such as 'Gabriel Friend121' rave about the joyful atmosphere and thoughtful touches, like singing "Happy Birthday" in both Korean and English for special occasions.

While some diners, like 'SJ Yang', noted that the chicken wings could be a bit on the hotter side for their taste, the overall sentiment remains incredibly positive. The casual ambiance and the attentive yet efficient service make any wait worthwhile—even during busy times when the establishment seems to run on heartfelt effort from its dedicated staff.

With a menu that hits the right notes and an atmosphere where memories are made, OB Square is not just another dining option. It’s a taste of Korean hospitality and culinary artistry that invites you to indulge, unwind, and enjoy every bite. Be sure to stop by for a late-night snack or an evening filled with laughter, good food, and perhaps a song or two!

Accessibility
Has wheelchair-accessible car park
Has wheelchair-accessible entrance
Has wheelchair-accessible seating
Has wheelchair-accessible toilet
Service options
Offers delivery
Offers takeaway
Serves dine-in
Highlights
Has fast service
Popular for
Popular for dinner
Good for solo dining
Offerings
Serves alcohol
Serves beer
Serves coffee
Serves comfort food
Serves late-night food
Has private dining room
Serves small plates
Dining options
Serves dinner
Has catering
Has seating
Amenities
Has toilet
Atmosphere
Casual
Crowd
Good for groups
Popular with university students
Planning
Accepts reservations
Payments
Accepts credit cards
Accepts debit cards
Accepts NFC mobile payments
Credit cards
Parking
Free of charge street parking
Free parking lot
Openings Hours
Checking

Monday

Closed

Tuesday

05:00 PM - 01:00 AM

Wednesday

05:00 PM - 01:00 AM

Thursday

05:00 PM - 01:00 AM

Friday

05:00 PM - 02:00 AM

Saturday

05:00 PM - 02:00 AM

Sunday

05:00 PM - 01:00 AM

167 Reviews
Gabriel Friend121

29 Aug 2025

Amazing staff, food, service! They even sang happy birthday for us in Korean and English! there’s private rooms with karaoke!

SJ Yang

29 Aug 2025

It’s relatively unknown but a good chill spot to hit the wings and other delicious organ clotting foods. In general the food is good though I found their wings to be rather flavorless and way too hot (garlic wings). I prefer the fried shrimp stuff. If you order the combo menu, each dish comes out to be around $20 so not really the cheapest place either. But it’s a nice old fashioned korean gastro pub to hit up with the buds.

Ben Park

03 Aug 2025

Korean-style pub. The atmosphere is pretty cool. It is very loud, so those with sensory overload issues may want to avoid.

Ce Li

02 Jul 2025

Came here with a friend for dinner. The wait was short since it wasn't packed. The kind service lady lead us to a table pretty quickly. Overall the experience was decent, the food was great, service was good. Would come back here. They are a little short staffed by what I saw only 2 service staff and a cook serving the entire place so don't rush them.

J L

28 Jun 2025

This restaurant so so good!! Make sure you order the Fried Garlic Chicken Wings, it is the best Garlic Chicken I’ve ever had. Their corn cheese and kimchi fried rice are also very tasty. They serve alcohol + chicken as combo for those who want to enjoy drinking with good food. Highly recommended!

A S

15 Jun 2025

This was our first time coming here and it was legitimately some of the best late night food I've had. We came in pretty late and ordered chicken, fries, and shrimp dishes and that was more than enough for our group. The service was excellent and I'd highly recommend this place to anyone. I will for sure be back with other people.

Andy Narendra

15 Jun 2025

Another midnight snack favorite spot! Two awesome grandmas running the show at the front line! Savory, crispy on the outside, and soft in the inside for their most famous OB chicken wings.

包子&布丁

29 May 2025

Love love love the fried chicken wings at this place! But we always ordered the OB wings so I couldn't comment on other flavors. The clam soup is superb! Lots of flavor! I also really like the kimchi fried with Sunnyside egg on top. The sizzle gizzards are spicy with lots of garlic and chilli peppers. But be aware if you do not like chewy food because chicken gizzards are a bit on the chewy side. The food are all on the heavy side because it's a drinking place. It can get loud at times. Would recommend making reservation.

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