The
- Cuisine
- Japanese Buffet
- Currency
- THB
- Price range
- THB$$$
- Last verified
- 9 September 2026
Part of the Oishi Group, founded by Tan Passakornnatee — a Thai-founded company despite its Japanese name and cuisine focus. Oishi grew into one of Thailand's largest Japanese-food and beverage operators.
Buffet
Buffet (2.5 hours, Siam Discovery)
THB 699.00
Children's Buffet (100–140cm tall)
THB 529.00
Premium Buffet (adult, 120 minutes)
THB 1,059.00
Plus 10% service charge and 7% VAT
Platinum Buffet (adult, 120 minutes)
THB 1,659.00
Plus 10% service charge and 7% VAT
FAQ
Frequently asked questions
How much is the buffet at Oishi Grand?
The 2.5-hour buffet costs from ฿699 at Oishi Grand, based on pricing checked in 2026. Oishi is a major Japanese-restaurant group in Thailand.
Other fast food menus in Thailand
TheManued is not officially affiliated with Oishi Grand. Prices are independently verified and may vary by location and over time. See Oishi Grand in other countries.