Koisan Sushi & Japanese Cuisine in Orange, CA – Reviews, Hours, and Contact Details

Koisan Sushi Bar Party Room Group and Party Seating. Seats 6 to 28 guests.

Bluefin Tuna Sashimi w/ Yuzukosho. (Hon Maguro)

Spain, Line and Hook.

Koisan Sushi Bar - Waiting Area since 1982

Blue Fin Tuna Combo!!
otoro & hon maguro

Koisan Sushi Bar Booth Seating Interior Dining Room

Happy 7 years anniversary for Mark & Maria!!

Scottish Atlantic Salmon Belly Nigiri Sushi

Farmed, Scotland.

Koisan Sushi & Japanese Cuisine Sushi Restaurant ·$$

4.0 947 reviews on

Specialty Rolls! and Sake | Generous Happy Hour |$45 Omakase | $6 Beers | Fresh Daily Sashimi

Website: koisansushibar.com

Phone: (714) 639-2330

Response 4 hrs. Response rate 100%

Closed now

Thu 11:30 AM - 9:30 PM
Fri 11:30 AM - 9:30 PM
Sat 4:00 PM - 9:30 PM
Sun Closed
Mon 11:30 AM - 9:30 PM
Tue 11:30 AM - 9:30 PM
Wed 11:30 AM - 9:30 PM

1132 E Katella Ave Orange, CA 92867 ·2170.01 mi

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Amenities

Accessible
Wifi
Family friendly

Reviews

4.0 947 reviews

5 star

554 4 star

156 3 star

55 2 star

57 1 star

125

Brandon 10/19/26

Service by Devan: The best. He's going places. Food: Delicious and plenty. We took leftovers home. Owner: Super friendly

Shakala Moore 08/22/26

First time coming. Great Service. Despite a guy making a big deal about lemon ! Devin was so sweet! The food was amazing ! Definitely will come back again.

Stephanie D. 10/23/26

My husband came here for lunch and we were surprised that there was buy one get one half off on specialty rolls (there was a list of specialty rolls for the special offer). The service was fast...

E.J. A. 08/07/26

I love their Buy 1 roll - Get the 2nd roll at 50% off happy hour deal. I recommend you give them a try!

Emily B. 01/27/26

The ambience is very traditional Japanese with private booths, like you are in your own bento box lol. Hannah took great care of us -- knew exactly when to check on us and exactly when yo leave us...

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