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
Children's Buffet (100–140cm tall)
THB 529
Premium Buffet (adult, 120 minutes)
THB 1,059
Plus 10% service charge and 7% VAT
Platinum Buffet (adult, 120 minutes)
THB 1,659
Plus 10% service charge and 7% VAT
Price insights
Oishi Grand prices in Thailand at a glance
- Items listed
- 4
- in 1 section
- Lowest price
- THB 529
- Children's Buffet (100–140cm tall)
- Middle price
- THB 879
- about $26.36
- Highest price
- THB 1,659
- Platinum Buffet (adult, 120 minutes)
We list 4 Oishi Grand items in Thailand, across 1 menu section. Prices run from THB 529 for Children's Buffet (100–140cm tall) to THB 1,659 for Platinum Buffet (adult, 120 minutes). The middle price is THB 879 (about $26.36). The most expensive item costs about 3.1 times the cheapest.
How Oishi Grand compares in Thailand
By the middle price of the items we list, Oishi Grand is the most expensive of the 24 chains we track in Thailand. That is 23 chains cheaper and 0 chains more expensive. Because this ranks the items on our lists, it says more about the kind of food each chain sells than about value for money.
Chains with similar prices in Thailand
- Bar B Q PlazaSlightly cheaper · middle price THB 319 · 4 items
- SizzlerSlightly cheaper · middle price THB 400 · 5 items
Figures use the items listed above. Dollar amounts are approximate, using the dated rates on our currency converter. See how we collect and check prices.
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.