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Anantara Siam Bangkok Hotel

★★★★★
Excellent

155 Rajadamri Road, Siam

About This Property

Luxurious Thai Retreat

Thai-Inspired Rooms: Experience Thai luxury in every detail, from teak decor to Thai silk accents. Enjoy modern amenities like a flat-screen TV and DVD player.

Relaxation and Wellness: Indulge in the spa's private plunge pools and herbal tea. Stay active with fitness classes and unwind in the steam room. Families are catered to with special amenities.

Culinary Delights: Savor Italian, Japanese, and local Thai cuisine in the hotel's 9 dining options. From Spice Market's Thai specialties to Aqua Lounge's casual dining, there's something for every palate.

Book now for an unforgettable stay at Anantara Siam Bangkok Hotel, where luxury meets convenience.

Why guests recommend it

Excellent serviceHigh-quality food

Facilities & Services (90)

Health or beauty spa nearby
Offsite parking discounted rates available
Clubhouse
Electric bicycle charging station
Fitness facilities (surcharge)
Non-smoking rooms
Air conditioning
Swimming pool
Restaurant
Room service
Terrace
Family rooms

Available Rooms

No rooms available for the selected dates

Guest reviews

8.9
Very Good
1116 reviews

Most recent

jamestY9915QB
February 15, 2026
10.0
Excellent

Stay in superb Bangkok hotel

This hotel impressed on every level. An excellent building with spotless well-appointed rooms and superb staff. Food was fabulous.

👍 Liked
  • This hotel impressed on every level. An excellent building with spotless well-appointed rooms and superb staff. Food was fabulous.
MZS2019
February 15, 2026
10.0
Excellent

Our favourite hotel

My elderly mother and I recently returned to the Anantara Siam to commemorate a family anniversary. We had previously stayed two years ago (see review 21 February 2024) and before that I had visited with my husband (see review 31 January 2023). To say we all absolutely adore this beautiful hotel, its facilities, and its staff, is an understatement! This time was a little different as the hotel was only full to 1/3 capacity due to ongoing renovations, yet the renovations were entirely behind-the-scenes and caused no disruption. It was inadvertently the perfect time to visit, as the best public spaces - the lobby, pool, gym, Parichart Court breakfast area, and Kasara Lounge - were able to be enjoyed with no crowds of guests! The newly reopened pool, with its the red umbrellas and black & white tiles, is totally stunning, and the Kasara Lounge has had a nice contemporary update. As ever, the staff complete the wonderful ambience of the hotel as a whole - this time we were particularly looked after by Kate, Mind & Lyn in the Kasara lounge, and also Kae & her capable team at the main breakfast buffet. We look forward to our next visit and would not stay anywhere else in Bangkok.

👍 Liked
  • My elderly mother and I recently returned to the Anantara Siam to commemorate a family anniversary. We had previously stayed two years ago (see review 21 February 2024) and before that I had visited with my husband (see review 31 January 2023). To say we all absolutely adore this beautiful hotel, its facilities, and its staff, is an understatement! This time was a little different as the hotel was only full to 1/3 capacity due to ongoing renovations, yet the renovations were entirely behind-the-scenes and caused no disruption. It was inadvertently the perfect time to visit, as the best public spaces - the lobby, pool, gym, Parichart Court breakfast area, and Kasara Lounge - were able to be enjoyed with no crowds of guests! The newly reopened pool, with its the red umbrellas and black & white tiles, is totally stunning, and the Kasara Lounge has had a nice contemporary update. As ever, the staff complete the wonderful ambience of the hotel as a whole - this time we were particularly looked after by Kate, Mind & Lyn in the Kasara lounge, and also Kae & her capable team at the main breakfast buffet. We look forward to our next visit and would not stay anywhere else in Bangkok.
bakuls2019
February 13, 2026
10.0
Excellent

Fantastic

My wife and I just returned after spending three nights at Siam Anantara Bangkok. The service is par excellence. The staff is very courteous and goes out of the way to help you in every way. The rooms are fantastic, big and clean. The location is very ideal because it is very close to Major Malls. We would like to appreciate our thanks specially to few people from the hotel. The General Manager was so helpful that he even went out of the way to introduce the chefs of the hotel for our special vegetarian meals. The concierge Ms. Jam (Tawaree Sommanasak), who was so helpful to make our stay comfortable in every way. She is so courteous and gave us lot of information as we were visiting Bangkok after many years. We also want to thank Mr. Tan at the reception counter for helping us on the last day during our check-out by making everything easy for us. We give 10/10 points to Siam Anantara Bangkok. Thankyou for everything. Mr. & Mrs. Bakul Shah

👍 Liked
  • My wife and I just returned after spending three nights at Siam Anantara Bangkok. The service is par excellence. The staff is very courteous and goes out of the way to help you in every way. The rooms are fantastic, big and clean. The location is very ideal because it is very close to Major Malls. We would like to appreciate our thanks specially to few people from the hotel. The General Manager was so helpful that he even went out of the way to introduce the chefs of the hotel for our special vegetarian meals. The concierge Ms. Jam (Tawaree Sommanasak), who was so helpful to make our stay comfortable in every way. She is so courteous and gave us lot of information as we were visiting Bangkok after many years. We also want to thank Mr. Tan at the reception counter for helping us on the last day during our check-out by making everything easy for us. We give 10/10 points to Siam Anantara Bangkok. Thankyou for everything. Mr. & Mrs. Bakul Shah
ElvenPrince
February 10, 2026
10.0
Excellent

A Thoughtful Stay, Nearly Flawless

Always a pleasure to return to Anantara Siam, one of my favourite hotels in Bangkok. Prior to arrival, I received an email informing me that GHA Titanium members are not entitled to lounge access, which was reasonable, as this has never been an included benefit. That said, it would be wonderful if GHA reconsidered this perk for their elite members in the future. While I did not receive a room upgrade on this occasion, I was thoughtfully offered several alternatives to enhance my stay. These options were a lovely touch and allowed me to enjoy different aspects of the hotel that I might not otherwise have experienced during a short visit. My room on Level 5 finally offered a lovely golf course view—much appreciated after mentioning a viewless room during my previous stay. Tan handled my check-in smoothly and was warm and personable throughout. Rowan kindly escorted me to my room and provided a helpful refresher on the hotel’s facilities and operating hours. One small disappointment was the absence of a welcome amenity. It seemed to have been overlooked, as the table in my room (Room 505) remained empty throughout my first day after check-in. I visited the Anantara Spa and had a wonderfully relaxing experience. Breakfast, as always was a highlight—warm greetings from the staff and impeccable service truly showcased Thai hospitality at its best. The lobby’s centerpiece featuring the horse is absolutely stunning. I love how serene and calm the lobby atmosphere always feels—it never fails to give me a sense of peace. The porters and the lady at the entrance (my apologies for not catching her name) were consistently friendly and helpful. A special thank you as well to Arbell for the smooth and efficient check-out process. Overall, it was an almost perfect stay, save for the missing welcome amenity. I look forward to returning again next time!

👍 Liked
  • Always a pleasure to return to Anantara Siam, one of my favourite hotels in Bangkok. Prior to arrival, I received an email informing me that GHA Titanium members are not entitled to lounge access, which was reasonable, as this has never been an included benefit. That said, it would be wonderful if GHA reconsidered this perk for their elite members in the future. While I did not receive a room upgrade on this occasion, I was thoughtfully offered several alternatives to enhance my stay. These options were a lovely touch and allowed me to enjoy different aspects of the hotel that I might not otherwise have experienced during a short visit. My room on Level 5 finally offered a lovely golf course view—much appreciated after mentioning a viewless room during my previous stay. Tan handled my check-in smoothly and was warm and personable throughout. Rowan kindly escorted me to my room and provided a helpful refresher on the hotel’s facilities and operating hours. One small disappointment was the absence of a welcome amenity. It seemed to have been overlooked, as the table in my room (Room 505) remained empty throughout my first day after check-in. I visited the Anantara Spa and had a wonderfully relaxing experience. Breakfast, as always was a highlight—warm greetings from the staff and impeccable service truly showcased Thai hospitality at its best. The lobby’s centerpiece featuring the horse is absolutely stunning. I love how serene and calm the lobby atmosphere always feels—it never fails to give me a sense of peace. The porters and the lady at the entrance (my apologies for not catching her name) were consistently friendly and helpful. A special thank you as well to Arbell for the smooth and efficient check-out process. Overall, it was an almost perfect stay, save for the missing welcome amenity. I look forward to returning again next time!
matthiask256
February 7, 2026
10.0
Excellent

We’ll come back, if we’re ever again in Bangkok

The hotel’s location right next to a BTS station made it very easy to get around Bangkok. The staff were extremely attentive and helpful. Our room was nice, spacious, and clean. The breakfast and other occasions at the Kasara lounge were outstanding. The room was quiet and we slept very well.

👍 Liked
  • The hotel’s location right next to a BTS station made it very easy to get around Bangkok. The staff were extremely attentive and helpful. Our room was nice, spacious, and clean. The breakfast and other occasions at the Kasara lounge were outstanding. The room was quiet and we slept very well.
IMO444
February 1, 2026
10.0
Excellent

Bill Imeson

Great location in the city centre only 100 metres from the sky train, with the most friendly happy staff you will ever meet. The breakfast here is truly fantastic catering for all cultures, and with the calm oasis of the pool to relax by after exploring the city, this is a wonderful hotel.

👍 Liked
  • Great location in the city centre only 100 metres from the sky train, with the most friendly happy staff you will ever meet. The breakfast here is truly fantastic catering for all cultures, and with the calm oasis of the pool to relax by after exploring the city, this is a wonderful hotel.
Mye Lene
January 31, 2026
10.0
Excellent

Nataliya
January 31, 2026
8.0
Very Good

Marcell
January 27, 2026
10.0
Excellent

Amrita
January 26, 2026
8.0
Very Good

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