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Oishi Grand (Siam Discovery Center)

#435 of 9,405 Restaurants in Bangkok
Certificate of Excellence
€€ - €€€
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989 Rama 1 Road, Pathumwan, Bangkok, Thailand
+66 2 658 0222
11:00 - 22:00
Closed now
See all hours
Sun - Sat 11:00 - 22:00
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219 Reviews from our TripAdvisor Community

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Showing 144: English reviews
Lansing, Michigan
Level Contributor
89 reviews
36 restaurant reviews
common_n_restaurant_reviews_1bd8 73 helpful votes
2 of 5 bubbles Reviewed 1 week ago

So disappointing the food quality had dropped substanally and the price has gone up. The new location is much smaller. Don't bother an waste your time or money going here. Sad.

Thank gfmsugrad
Level Contributor
99 reviews
75 restaurant reviews
common_n_restaurant_reviews_1bd8 10 helpful votes
4 of 5 bubbles Reviewed 1 week ago via mobile

Cool atmosphere, super fresh sashimi and sushi ( of course). All the food was tasty, and the flavours did not all wash together ( like some buffets ). Top quality ingredients!!!

1 Thank jpasak
Bangkok, Thailand
Level Contributor
108 reviews
33 restaurant reviews
common_n_restaurant_reviews_1bd8 74 helpful votes
2 of 5 bubbles Reviewed 1 week ago

Expecting to get a japanese buffet for THB 900 is a bit naive, esoecially at this more high priced shopping location. Regarding the taste, I can not comprehend the good rating of this place. The sashimi - tuna and salmon alike - does have no distinguished taste. The raw grill goods are much the same, with only few sauces -... More 

1 Thank BTS1972
Bangkok, Thailand
Level Contributor
29 reviews
10 restaurant reviews
common_n_restaurant_reviews_1bd8 4 helpful votes
5 of 5 bubbles Reviewed 1 week ago

All you can eat ชอบมากินที่นี่ อาหารสด และ มีให้เลือกเยอะแยะมากมายจนกินไม่ครบ ชอบปลาหิมะ ที่สามารถ สั่งให้ทำได้หลายเมนู ชอบไอศครีมฮาเกนดาส ใครชอบปลาดิบ สบายไปเลย เวลา 2.30 ชม. เดินทางมาง่าย ด้วยBTS อยู่บนชั้น 4 สยามพาราก่อน

Thank Pooksasi
Level Contributor
27 reviews
14 restaurant reviews
common_n_restaurant_reviews_1bd8 7 helpful votes
4 of 5 bubbles Reviewed 3 weeks ago via mobile

There are a wide variety of different dishes from sashimi, sushi to grilled seafood and meat. They also have a selection of drinks and desserts. The grilled dishes is are made to order and the sashimi are fresh.

Thank EnthusiastTraveler7
Newcastle upon Tyne, United Kingdom
Level Contributor
11 reviews
common_n_restaurant_reviews_1bd8 1 helpful vote
5 of 5 bubbles Reviewed 3 weeks ago via mobile

We love this place for 1700bht two people can eat as much as they like! And we did 😋 it has a massive selection of Japanese food loads of sushi or sashimi if you don't like it raw you can take a pick of a large selection of fresh meats that they will cook for you. As for Deserts they... More 

Thank chrisja82
Makati, Philippines
Level Contributor
14 reviews
4 restaurant reviews
common_n_restaurant_reviews_1bd8 4 helpful votes
4 of 5 bubbles Reviewed 4 weeks ago via mobile

We were here for dinner on our last night in Bangkok. I think it was a good decision despite some unfavorable reviews of the restaurant. I enjoyed the variety of sushi and sashimi which included my favorites salmon and hamachi. The grilled section is likewise fantastic with NZ beef for teppanyaki and Halibut for steaming. There was also the soft... More 

Thank RollyReyes
Hong Kong, China
Level Contributor
5 reviews
common_n_restaurant_reviews_1bd8 2 helpful votes
5 of 5 bubbles Reviewed 30 November 2016

This is amazing buffet for amazing price. We stuffed ourselves with all the delicious fresh sushi. We were there for 2 hours!

Thank yingbox
Level Contributor
11 reviews
11 restaurant reviews
common_n_restaurant_reviews_1bd8 2 helpful votes
4 of 5 bubbles Reviewed 11 November 2016

Simple to find inside the mall. The food is very good, I ate the buffet, just little bit overpriced.

Thank Edward M
Jakarta, Indonesia
Level Contributor
59 reviews
23 restaurant reviews
common_n_restaurant_reviews_1bd8 4 helpful votes
5 of 5 bubbles Reviewed 2 September 2016 via mobile

I think the food is great and the 2.5 hours allowance is generous enough for the price. There were variety of food available. The grilled salmon was my favorite. One thing I like is that they provided mineral water instead of juices only. The ice cream were bomb! My friends and I all liked it very much!!

Thank shellemyang

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Restaurant Details

Rating summary
  • Food
    4 of 5 bubbles
    3.5 of 5 bubbles
  • Value
    4 of 5 bubbles
    3.5 of 5 bubbles
Average prices
US$15 - US$35
Japanese, Sushi, Asian
Breakfast, Lunch, Dinner
Restaurant features
Seating, Waitstaff, Parking Available, Highchairs Available, Wheelchair Accessible, Reservations, Buffet, Serves Alcohol
Good for
Romantic, Child-friendly, Groups
Open Hours
11:00 - 22:00
11:00 - 22:00
11:00 - 22:00
11:00 - 22:00
11:00 - 22:00
11:00 - 22:00
11:00 - 22:00
Location and Contact Information
  • Address: 989 Rama 1 Road, Pathumwan, Bangkok, Thailand
  • Location: Asia  >  Thailand  >  Bangkok>  > Siam
  • Neighbourhood: Siam
  • Phone Number: +66 2 658 0222

Questions & Answers

Here's what previous visitors have asked, with answers from representatives of Oishi Grand (Siam Discovery Center) and other visitors
4 questions
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over a year ago
over a year ago

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Questions? Get answers from Oishi Grand (Siam Discovery Center) 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 Siam

Neighbourhood Profile
Take some of Asia’s biggest malls, hundreds of street-side vendors and a dozen of posh hotels and you’ll have Siam - Bangkok’s commercial district that will make any shopper’s heart beat faster. From cheap electronics and wholesale goods in MBK to designer handbags in Siam Paragon, you’re almost guaranteed to find what you’re looking for in one of Siam’s many malls. Take a break from the commercial craze and visit the beautiful Jim Thompson house or the state-of-the-art Bangkok Arts and Cultural Centre to recharge.
Explore this neighbourhood