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Union Square
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430 Geary Street, San Francisco, CA 94102
+1 415-771-1280
11:30 am - 2:00 am
Open now
All hours
Sun - Sat 11:30 am - 2:00 am
More Info
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269 Reviews from our TripAdvisor Community

Traveler rating
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Showing 205: English reviews
Boston, Massachusetts
Level Contributor
47 reviews
17 restaurant reviews
common_n_restaurant_reviews_1bd8 18 helpful votes
4 of 5 bubbles Reviewed 4 days ago NEW

After a long morning flight from the East Coast I came across this place while wandering the neighborhood around my hotel. The soup was cheap, freshly made and delicious.

Thank Lucas777
Singapore, Singapore
Level Contributor
56 reviews
29 restaurant reviews
common_n_restaurant_reviews_1bd8 24 helpful votes
2 of 5 bubbles Reviewed 1 week ago via mobile

We ate here a year and enjoyed it tremendously but the standard has dropped drastically. The Gyoza skins were thick as a carpet and the whole dish an oily mess. The Caterpillar roll had paper thin unagi and was a sweet syrupy mess. The Ramen was decent but note a bowl could easily feed 2 adults and more. Service was... More 

Thank michgtan
Singapore, Singapore
Level Contributor
157 reviews
118 restaurant reviews
common_n_restaurant_reviews_1bd8 33 helpful votes
3 of 5 bubbles Reviewed 4 weeks ago

I came across a review on this restaurant so decided to try it - I love ramen! I reached the restaurant at 4.45pm and the place was nearly vacant. I was allowed to choose my seat. Service wasn't good - the young waiter lad was mechanical, takin down my char siu ramen order. My order took about 15-20mins to arrive.... More 

Thank Richard T
Level Contributor
3 reviews
common_n_restaurant_reviews_1bd8 1 helpful vote
5 of 5 bubbles Reviewed October 17, 2016

Always a good time when I go here. Such nice and quick service, they treat you like family here. All if their Ramen dishes are really delicious and their BBQ Eel with a Spicy Tuna sushi roll hits the spot just right. This local spot that's been around for 10 years or so makes their noodles from scratch and strive... More 

Thank Steven M
Niceville, Florida
Level Contributor
31 reviews
14 restaurant reviews
common_n_restaurant_reviews_1bd8 4 helpful votes
4 of 5 bubbles Reviewed October 15, 2016 via mobile

Loved it! We had ramen in miso, fried baby octopus, tuna Poki and a Hawaiian roll. Very fast and efficient service. Downstairs stays open even after the street level drops serving.

Thank Glenn K
Level Contributor
3 reviews
5 of 5 bubbles Reviewed September 25, 2016 via mobile

I was kinda worried because of how small the shop was it we got a table right away. Very good food!!

Thank Ash M
Chicago, Illinois, United States
Level Contributor
12 reviews
10 restaurant reviews
common_n_restaurant_reviews_1bd8 2 helpful votes
5 of 5 bubbles Reviewed September 4, 2016 via mobile

My husband and I went here because our hotel recommended it. We got miso, spicy noodles and Japanese soda. It was all really good! Service was good too.

1 Thank Jocelyn V
Melbourne, Australia
Level Contributor
66 reviews
35 restaurant reviews
common_n_restaurant_reviews_1bd8 18 helpful votes
5 of 5 bubbles Reviewed August 28, 2016 via mobile

After a long day of riding, my partner and I wanted something close to our hotel and found this place online, the reviews weren't great so our expectations weren't that high. Wow! The Katana-ya ramen was excellent, loved the addition of fried chicken and Gyoza in the broth. I'm not a ramen expert, but I eat it quite a bit,... More 

Thank Pitted4lyf
Toronto, Ontario, Canada
Level Contributor
28 reviews
9 restaurant reviews
common_n_restaurant_reviews_1bd8 5 helpful votes
3 of 5 bubbles Reviewed August 28, 2016 via mobile

The ramen at this place is average, with broth being too salty and the pork belly I had too tough. The sushi rolls here were very good though!

1 Thank Herman N
Level Contributor
8 reviews
6 restaurant reviews
5 of 5 bubbles Reviewed August 27, 2016 via mobile

The salt based ramen is well worth it!! $10 for the standard base with pork, seaweed, onions & ramen is the perfect antidote to a long evening at the Giants game. This Asian is happy to find this place despite the loud awful music.

Thank Tasha H

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San Francisco, CA

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Restaurant Details

Rating summary
  • Food
    4 of 5 bubbles
    4 of 5 bubbles
  • Value
    4 of 5 bubbles
    3.5 of 5 bubbles
Average prices
Japanese, Sushi, Asian, Soups
Lunch, Dinner, Late Night
Restaurant features
Takeout, Seating, Waitstaff, Serves Alcohol
Good for
Families with children, Dining on a budget
Open Hours
11:30 am - 2:00 am
11:30 am - 2:00 am
11:30 am - 2:00 am
11:30 am - 2:00 am
11:30 am - 2:00 am
11:30 am - 2:00 am
11:30 am - 2:00 am
Location and Contact Information
  • Address: 430 Geary Street, San Francisco, CA 94102
  • Location: United States  >  California (CA)  >  San Francisco>  > Union Square
  • Neighborhood: Union Square
  • Phone Number: +1 415-771-1280

Questions & Answers

Questions? Get answers from Katana-ya staff and past visitors.
Posting guidelines
Typical questions asked:
  • Do you have gluten-free options?
  • Is there a dress code?
  • Do you allow dogs on the outdoor patio?

Staying in Union Square

Neighborhood Profile
Union Square
Originally home to rallies supporting the Union Army in the Civil War, this grand square has become the city's premier shopping and entertainment district containing the largest number of upscale department stores, chic boutiques, art galleries and theaters in the city. It's a large open area where tourists and locals gather, watch cable cars and crowds go by, enjoy a snack, or plan their day of shopping and sightseeing, If feeling the pulsating energy of the city is on your agenda, Union Square is the place to soak it in.
Explore this neighborhood