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Koisan Japanese Cuisine

1132 E Katella Ave, Ste A11, Orange, CA 92867-5044
+1 714-639-2330
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  • Excellent66%
  • Very good13%
  • Average6%
  • Poor13%
  • Terrible0%
4 weeks ago
“Dr z”
12 Oct 2014
“Great sushi plus”
Closed Now
All hours
Japanese, Sushi, Asian
1132 E Katella Ave, Ste A11, Orange, CA 92867-5044
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Reviews (15)
Traveller rating
Traveller type
Time of year

1 - 10 of 15 reviews

Reviewed 4 weeks ago via mobile

The Asian waitress with the blonde hair was very rude when we asked for more wasabi and slammed the wasabi down and never came back to check on us. We had to give the cashier the money for the bill.

Thank marrrrrA
Reviewed 13 October 2014

I am not a big fan of Sushi but my husband and family really enjoy it. While visiting CA, we were looking for a good sushi place with something to keep me happy too. My husband loved the Sushi. He said that each dish had...More

Thank BrooklynDodgers13
Reviewed 26 January 2014

We visited during a local convention. While nothing was terribly wrong, just keep driving down the road to Shiki for far better fare. The owner was very accommodating but the food was unfortunately 'just OK'. It is off our list for the future . ....More

Thank imcarthur
Reviewed 14 December 2013

My boyfriends family has been coming for over 30 years and they have totally converted me to this place. Great food and service!

1  Thank Jennifer765
Reviewed 28 March 2013

Visiting from Canada and decided to try this place. I hope this is not the best Japanese restaurant that this area has to offer. The food was fair at best and quite expensive for what you get. The interior seemed like something from 30 years...More

1  Thank Satviewer2000
Reviewed 19 December 2012

I recently had dinner there with an eclectic group that included asians. What makes this place distinctive in not just the quality of the food (freshness, flavor, presentation) but the many creative expressions based on japanese cuisine that you can't get anywhere else. Of course,...More

1  Thank Gary L
Reviewed 6 December 2012

Good News, Koi-San is Open again!!!! The new Owners are excited to announce the reopening of a popular Japanese Restaurant in the City of Orange, both the Sushi Chef and the Kitchen Chef have returned and the Inside has been cleaned up and looks fantastic,...More

2  Thank ca1Robert
Reviewed 22 March 2012

This is really the best Japanese restaurant that I have ever encountered. I eat sushi everytime that I am in CA and all over the country, but this is THE best. I went for lunch and the sales rep who I was working with (a...More

2  Thank JoInTexas
Reviewed 16 June 2011

Love this place, been going for over 20 years. Very authentic Japanese Food! Love the owner Sam and his nephew Leo! Can be very busy but worth the wait.

2  Thank my_red_dress
Reviewed 10 January 2011

This is a hidden gem in a strip mall with a plain entrance and, once inside, it's a lovely oasis of calm. The food is amazing and our server, Lisa, was helpful and fun. We enjoyed our meal enormously and can't wait to return.

Thank FlorenceH13
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Questions & AnswersAsk a question
Do you have gluten free sushi and other gluten free options?
6 August 2016|
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Restaurant Details

Rating summary
  • Food
  • Value
Lunch, Dinner
Restaurant features
Seating, Waitstaff, Reservations
Open Hours
16:00 - 21:00
11:30 - 21:30
11:30 - 21:30
11:30 - 21:30
11:30 - 21:30
11:30 - 21:30
11:30 - 21:30
Location and Contact Information
  • Address: 1132 E Katella Ave, Ste A11, Orange, CA 92867-5044
  • Location: United States  >  California (CA)  >  Orange County  >  Orange
  • Phone Number: +1 714-639-2330
  • E-mail
Koisan Sushi Bar has reopened and the new owners have added a flare to the traditional Japanese restaurant. Enjoy our chef’s own inspired specials at the sushi bar, in a cozy booth, or our room for private parties. Come by and experience the unique ambiance, special sushi creations, and our very own secret sauce.\Hours:Tues-Fri 11:30-2:00 PMTues-Sat 5:30-9:30 PM