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2 Dole Drive, Four Seasons Hotel Westlake Village, Westlake Village, CA 91362-7300
+1 818-575-3000
Mon - Sat 17:30 - 21:30
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93 Reviews from our TripAdvisor Community

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Showing 91: English reviews
Level Contributor
32 reviews
17 restaurant reviews
common_n_restaurant_reviews_1bd8 36 helpful votes
5 of 5 bubbles Reviewed 19 August 2016

Excellent service, as expected in a 4 Seasons, nice ambience, and delicious food. Portions are on the small side, but the flavors are spot on - very fresh! We enjoyed an excellent selection of sushi as well as a couple of rolls and the miso cod which came wrapped in a leaf. Cocktails were good, and they validated our parking... More 

1 Thank Zack_in_CA
Los angeles
Level Contributor
23 reviews
7 restaurant reviews
common_n_restaurant_reviews_1bd8 17 helpful votes
3 of 5 bubbles Reviewed 17 August 2016

WE decided to try Onyx only because of the Travelzoo 2 for 1 coupon. I'm glad that we had dinner there but felt underwhelmed by the portion size. I'm wondering if the kitchen knows which guest is using coupons because the size of the Miso Cod was extremely small. The specialty rolls were great, but not only if you are... More 

Thank Islandwantabe
Los Angeles
Level Contributor
246 reviews
197 restaurant reviews
common_n_restaurant_reviews_1bd8 102 helpful votes
5 of 5 bubbles Reviewed 10 August 2016 via mobile

Onyx has a very elegant inventive menu with a Japanese theme. It's not a sushi bar and too many people are comparing it to their favorite sushi place. Sushi bars are more focused on the quality and variety of fish with local twists in rolls and presentation. Onyx serves sushi but it's not the feature of the restaurant. Now, the... More 

Thank Foosh9
Los Angeles, California
Level Contributor
186 reviews
70 restaurant reviews
common_n_restaurant_reviews_1bd8 158 helpful votes
5 of 5 bubbles Reviewed 5 August 2016

We go to ONYX at least once a month. I love when I get the coupons for the 2 for 1 deal here. It includes 2 appetizers, 2 entrees, 2 drinks and a dessert. Our favorite appetizers are the rolls. I just had the Hamachi Ponzu and the I always order the Wagyu hot stone. Desserts change. There use to... More 

Thank dahlia8
Encinitas, California
Level Contributor
28 reviews
8 restaurant reviews
common_n_restaurant_reviews_1bd8 9 helpful votes
5 of 5 bubbles Reviewed 27 June 2016

This is the best sushi I have had in the whole Southern California area. The service and ambiance is fantastic and this is in a hotel, it is a beautiful hotel so parking is easy with either valet or self parking available.

Thank ABCisme
San Diego, California
Level Contributor
258 reviews
209 restaurant reviews
common_n_restaurant_reviews_1bd8 235 helpful votes
4 of 5 bubbles Reviewed 9 June 2016 via mobile

My wife and I ate there while staying at the Four Seasons. The welcome was warm and the waitstaff was friendly, accommodating and knowledgable about the menu. He had bee trained by the chef, who must be gifted to convert an ex construction worker into an apparently knowledgable Japanese food server in such a short period of time. The selection... More 

1 Thank 22club58
Thousand Oaks, California
Level Contributor
128 reviews
74 restaurant reviews
common_n_restaurant_reviews_1bd8 38 helpful votes
3 of 5 bubbles Reviewed 8 June 2016

Went here for the first time this past weekend. We knew it might be little pricey, being at a Four Seasons and all, so the cost is what we expected. The food, however, was not memorable. It wasn't bad, just not memorable. Our waitress was great and food arrived promptly. We ate outside, which was very nice, and the inside... More 

Thank Michael G
Richard P, Director of Food & Beverage at ONYX, responded to this review

Dear Michael, I am so sorry to hear that your experience at ONYX fell short. We always aim to provide the very best in food and service and it is unfortunate that our execution was not up to par. I will make sure your feedback is relayed to the appropriate people. We hope you will give us the opportunity to... More 

Malibu, CA
Level Contributor
109 reviews
71 restaurant reviews
common_n_restaurant_reviews_1bd8 32 helpful votes
5 of 5 bubbles Reviewed 29 May 2016 via mobile

Our first visit to this Japanese fine dining restaurant in the Four seasons hotel. We had a travelzoo voucher 40% off retail. Even though we were dining with a discount they treated us in a first class manner. Our waiter politely explained the rules of our voucher so there would be no confusion. We each had an appetizer or sushi... More 

Thank JimboMalibu_CA
Level Contributor
169 reviews
93 restaurant reviews
common_n_restaurant_reviews_1bd8 118 helpful votes
5 of 5 bubbles Reviewed 27 May 2016

Dined at Onyx twice on a recent stay at the Four Seasons Westlake Village. We just loved the food, the sashimi was excellent, as was the shrimp. The miso cod was outstanding. Lovely service was also a consistent feature.

Thank CassGeorge
Westlake Village, California
Level Contributor
23 reviews
18 restaurant reviews
common_n_restaurant_reviews_1bd8 2 helpful votes
5 of 5 bubbles Reviewed 23 May 2016

We have been to Onyx for dinner on numerous occasions. Not once have we been let down. Their food tastes wonderful -- whether sushi or cooked items -- and the service, while not always as consistently great as the food, is good nonetheless. I highly recommend it.

Thank KennethKay

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Restaurant Details

Rating summary
  • Food
    4.5 of 5 bubbles
    4.5 of 5 bubbles
  • Value
    4 of 5 bubbles
    4.5 of 5 bubbles
Average prices
US$25 - US$60
Japanese, Sushi, Asian
Restaurant features
Reservations, Outdoor Seating, Seating, Waitstaff, Valet Parking, Full Bar, Parking Available, Validated Parking, Wheelchair Accessible, Serves Alcohol
Dining Style
Casual Dining
Good for
Special Occasion Dining, Groups, Romantic, Business meetings
Open Hours
17:30 - 21:30
17:30 - 21:30
17:30 - 21:30
17:30 - 21:30
17:30 - 21:30
17:30 - 21:30
Location and Contact Information
  • Address: 2 Dole Drive, Four Seasons Hotel Westlake Village, Westlake Village, CA 91362-7300
  • Location: United States  >  California (CA)  >  Westlake Village
  • Phone Number: +1 818-575-3000
Specializing in fresh seafood and sushi, ONYX at Four Seasons Hotel Westlake Village offers delectable Asian fare. Backlit wall panels of semi-precious stones, such as carnelian and onyx, create a dramatic dining atmosphere. Bamboo floors, Japanese antiques and chandeliers grace the main dining room, while silk lanterns hanging over the sushi bar give an exotic feel. Watch while the freshest Japanese delicacies are being prepared, or sip a drink at the bar, where colourful aquatic creatures live in a double-sided, 2,000-gallon (7,571-litre) saltwater aquarium. A variety of sushi, sashimi and specialty hand rolls complement delectable Asian-influenced seafood creations. The menu offers many options to sample a variety of dishes, intended to be shared at the table. Also pairing well with Japanese cuisine is an extensive wine list featuring choices from California and around the world.

Questions & Answers

Here's what previous visitors have asked, with answers from representatives of ONYX and other visitors
1 question
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Simi Valley, California
over a year ago

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Questions? Get answers from ONYX 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?