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Siam Heritage Tokyo

Thai restaurant · ¥2,000 to ¥4,000 ·

Japan, 〒100-6506 Tokyo, Chiyoda City, Marunouchi, 1 Chome−5−1 Shin-Marunouchi Building, 6F

Menu and hours last checked

Siam Heritage Tokyo

About Siam Heritage Tokyo

If you're craving authentic Thai food in the heart of Tokyo, Siam Heritage Tokyo is the place to be. Nestled in the Shin-Marunouchi Building on the 6th floor, this vibrant Thai restaurant offers a cozy, welcoming atmosphere that's perfect for both casual meals and special occasions. Located in the bustling Marunouchi district, the restaurant brings a taste of Thailand right to the city’s core, with stunning views to complement your meal. Whether you're in the mood for a relaxing dine-in experience or prefer the convenience of delivery, Siam Heritage Tokyo caters to both.

The restaurant's menu is designed to delight with a mix of traditional Thai flavors and modern twists. From rich curries to tangy salads, there's something to satisfy every palate. They also offer an all-you-can-eat option, making it a great choice for those looking to indulge in a variety of dishes. If you're in the mood to unwind, the selection of beverages includes refreshing beer, tropical cocktails, wine, and even coffee, allowing guests to find the perfect pairing for their meal.

One of the standout features of Siam Heritage Tokyo is its commitment to authenticity. The ingredients are fresh, and the flavors are bold, bringing the true essence of Thai cuisine to Tokyo. Whether you're dining with friends, family, or enjoying a quiet evening alone, this restaurant promises a memorable experience with every visit. With friendly service and a menu that hits all the right notes, Siam Heritage Tokyo is an essential spot for anyone looking to explore the vibrant flavors of Thailand in Japan's capital.

Where this information comes from

Prices and dish names are transcribed from the restaurant's printed menu, photographed in August 2026 and reproduced on the menu page. Hours, address and service options come from the restaurant's public business profile. An editor confirmed the restaurant was trading on 4 September 2026. Something wrong? Tell us.

Photos

Business info

Service options

  • Dine-in
  • Delivery

Highlights

  • Great cocktails

Popular for

  • Lunch
  • Dinner

Accessibility

  • Wheelchair-accessible entrance

Offerings

  • Alcohol
  • All you can eat
  • Beer
  • Cocktails
  • Coffee
  • Wine

Dining options

  • Lunch
  • Dinner
  • Dessert
  • Seating
  • Table service

Amenities

  • Toilet
  • Wi-Fi
  • Wi-Fi

Atmosphere

  • Cosy
  • Romantic
  • Trendy
  • Upmarket

Crowd

  • Groups

Planning

  • Dinner reservations recommended
  • Accepts reservations

Payments

  • Credit cards
  • Debit cards
  • NFC mobile payments
  • Rakuten Pay
  • Credit cards

Opening hours

  • Monday 11:00 AM - 03:00 PM ,05:00 PM - 11:00 PM
  • Tuesday 11:00 AM - 03:00 PM ,05:00 PM - 11:00 PM
  • Wednesday 11:00 AM - 03:00 PM ,05:00 PM - 11:00 PM
  • Thursday 11:00 AM - 03:00 PM ,05:00 PM - 11:00 PM
  • Friday 11:00 AM - 03:00 PM ,05:00 PM - 11:00 PM
  • Saturday 11:00 AM - 03:00 PM ,05:00 PM - 11:00 PM
  • Sunday 11:00 AM - 03:00 PM ,05:00 PM - 10:00 PM

Hours can change on public holidays. Call ahead if you are making a special trip.

Location

Japan, 〒100-6506 Tokyo, Chiyoda City, Marunouchi, 1 Chome−5−1 Shin-Marunouchi Building, 6F

Diner notes

4.1 4.1 out of 5 · 550 notes
  • 5 stars 239
  • 4 stars 245
  • 3 stars 78
  • 2 stars 24
  • 1 stars 17
4 out of 5
The Siam Heritage: Traditional Thai Food ???????? High-quality and absolutely delicious Thai food! Loved the stunning view of Tokyo Station from the window seats. The staff’s kind and attentive service made the experience even better. What we enjoyed: Pad Thai Basil Chicken Stir-Fry Rice Fresh Shrimp Spring Rolls Total for two: ¥4,610 (tax included) A perfect spot for authentic Thai flavors with a view! #ThaiFood #TokyoEats #FoodieHeaven
KK KIICHIRO KOBORI Ate here , 16:42 am
4 out of 5
Quite pricey but the quality and volume makes up for it. But almost everything in this area is a bit pricey. The interior and furniture are gorgeous. Service is a bit hit or miss, depending on the staff. I went with a former boss, and there were way too many times that staff would just suddenly appear in the middle of where we were seated and block our conversation.
A ARBN Ate here , 16:42 am
5 out of 5
The food was amazing and very authentic. The atmosphere was also very comfortable.
EC Eddie C Ate here , 16:42 am

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