5-Star hotel

Anantara Siam Bangkok Hotel

155 Rajadamri Road, Siam, BangkokSee map

Excellent

1149 reviews

9.4/10

Stay highlights

Urban Oasis Retreat

Nestled in the vibrant heart of Bangkok, Anantara Siam offers easy access to iconic attractions like the Grand Palace and bustling markets, making it the perfect base for exploring the city.

Exceptional Thai Hospitality

Immerse yourself in unparalleled service as dedicated staff cater to your every need, ensuring a memorable stay filled with authentic Thai experiences and luxurious comfort.

Exquisite Dining Journeys

Savor a culinary adventure with diverse dining options, including award-winning Thai cuisine and international delicacies, all set in stunning surroundings that elevate every meal.

Popular amenities

Parking

Non-smoking rooms

Air conditioning

Swimming pool

Restaurant

Room service

Terrace

Family rooms

Lift / Elevator

Luggage storage

Express check-in/check-out

Safety deposit box

Fax/photocopying

Tour desk

Ironing service

Hot tub/Jacuzzi

Massage services

Currency exchange

Choose your room

Jul 29th – 30th 2026

1 Room, 2 Travellers

9.4

1149 reviews

marisakhe

Couples · November 2025

10/10

We held our wedding at Anantara Siam, and the entire experience went far beyond anything we expected. Every department truly understood the assignment—and then delivered more than what we bargained fo...We held our wedding at Anantara Siam, and the entire experience went far beyond anything we expected. Every department truly understood the assignment—and then delivered more than what we bargained for. K. Golf, our wedding go to person, took care of us from start to finish. She was attentive, proactive, and consistently went above and beyond to make sure we were happy. She delivered more than promised and made the entire process feel effortless. The head chef was exceptional. Not only was the food incredible—our guests couldn’t stop complimenting every single dish—but he was also extremely kind and accommodating. Vegan, vegetarian, food allergies, special requests—he handled every request with care and made sure every guest had something they loved. The flower & décor team, ทีมน้องน็อค, was amazing. They understood our vision instantly and executed it even better than we imagined. Their attention to detail was remarkable, and they delivered far more than what was agreed. The setup was stunning in every way. Overall, the team at Anantara Siam was professional, caring, and detail-oriented. Beautiful flowers, flawless service, incredible food, and a team that genuinely goes above and beyond. We honestly couldn’t recommend them enough. They made our wedding truly unforgettable.Show More

ElvenPrince

Solo Travel · October 2025

10/10

I had a quick one-night stay here as I was drawn to the convenient location. I arrived early, around 11 a.m., and was warmly assisted by Khun Koong with an early check-in, a much appreciated gesture. ...I had a quick one-night stay here as I was drawn to the convenient location. I arrived early, around 11 a.m., and was warmly assisted by Khun Koong with an early check-in, a much appreciated gesture. Unfortunately, both the Kasara Lounge and the swimming pool were closed for refurbishment during my visit, which meant I couldn’t fully enjoy the hotel’s facilities this time. My room on the fifth floor was clean and smelled fresh upon arrival. However, I was surprised to find a birthday cake addressed to someone else — a small but odd mix-up — and the room had virtually no view, facing directly toward another wall. Breakfast was a highlight, especially the outdoor seating surrounded by lush greenery, which made for a calm and pleasant start to the day. I was offered a THB 1,000 hotel credit, though the number of restrictions on where it could be used made it difficult to redeem during my short stay. Overall, despite a few inconveniences, I still had a comfortable experience. I’ve already booked another stay for February next year and look forward to enjoying the full range of facilities once refurbishments are complete.Show More

alterw2023

Couples · November 2025

4/10

We visited Sunday Brunch many times over 15 years and now again Christmas Brunch. PRICE UP 20 PERCENT. Last year great wines and Champagne...THIS YEAR ONLY MEDIUM QUALITY ! Cooked Foie Gras and Lobste...We visited Sunday Brunch many times over 15 years and now again Christmas Brunch. PRICE UP 20 PERCENT. Last year great wines and Champagne...THIS YEAR ONLY MEDIUM QUALITY ! Cooked Foie Gras and Lobster last year served cold. This time. Same. Only 1 sauce for lobster, kingcrab, etc. Kingcrab smalest ever. Obviously to disencourage to take too much. Before, they had salad dressings to use. GONE. 1 new aggressive lady manager in charge. Baked Foie Gras cold. Lobster coming from kitchen lukewarm. No Tenderloin.. The beef of lifestation dogfood. Hard as leather. Meat sauces cheap industrial. Many dishes overcooked and not served hot. The worst primitive bread for the chease. Very few deserts. Mostly primitive. Stupid molesting Life Jazz Music again. SIAM Anantara BANGKOK. Deleted experts cooks. Too expensive! Recruited cost controllers. Never again Siam Anantara Brunch.Show More

gehans-e

Couples · November 2025

10/10

This is our third holiday to Thailand, and each time we are in Bangkok we stay at the brilliant Anantara Siam. From the moment we arrived, we felt genuinely welcomed. Concierge team members Eak and ...This is our third holiday to Thailand, and each time we are in Bangkok we stay at the brilliant Anantara Siam. From the moment we arrived, we felt genuinely welcomed. Concierge team members Eak and Bouy helped us organise our transfers, tours and restaurant reservations prior to and during our visit. Pare and Bam were very helpful as well. We particularly enjoyed our dinners at Biscotti, including the Chef’s Table for my husband's birthday. This was thanks to Chef Guiseppe, manager Snooky, sommelier Kai, Whan and Mameaw in particular. We wanted to highlight the hospitality of Lyn, Kate, Bam, Pamela, Mind and Mo in the lounge. They seemed to anticipate our preferences before we even asked! We enjoyed our visit to the spa, thanks to the team of Tien, Ae, Bogust and Eye. We received helpful tips for our skin care routine!Show More

Amenities

General

Non-smoking rooms

Air conditioning

Terrace

Allergy-free room

Front Desk Services

Luggage storage

Express check-in/check-out

Tour desk

Currency exchange

Concierge service

Cashless payment available

Front desk (limited hours)

Express check-in

Housekeeping on request

Accessibility

Lift / Elevator

No accessible train station shuttle

Internet

Free wired internet

Internet access

Transport & Parking

Offsite parking discounted rates available

Electric bicycle charging station

Parking

Self parking (surcharge)

Airport transportation - pickup (surcharge)

Airport transportation - drop-off (surcharge)

Offsite parking discounted rates available

Secured parking

Garage

Electric bicycle charging station

Accessible train station shuttle

hygiene

Guest rooms disinfected between stays

Cleaning standards that are effective against Coronavirus

Physical distancing rules followed

Hand sanitizer in guest room and key areas

Sanitized tableware & silverware

Shared stationery like menus, pens are removed

Physical distancing in dining areas

Process in place to check health of guests

Fitness & Gym

Fitness facilities (surcharge)

Squash

Personal trainer

Fitness facilities (surcharge)

Pool Facilities

Swimming pool

Free pool cabanas

Exercise/lap pool

Restaurant & Bars

Restaurant

Room service

Coffee Shop on site

Fruits

Food delivered to guest room

Delivered food - securely covered

Mobile app for room service

Happy hour

Snack bar/deli

Spa

Health or beauty spa nearby

Hot tub/Jacuzzi

Massage services

Spa/wellness center services

Steam room

Beauty Services

Manicure

Pedicure

Health or beauty spa nearby

Games, Entertainment & Media

Television in common areas

Cleaning Services

Ironing service

Business & Work

Fax/photocopying

Invoice provided

ATM/banking

Reception hall

Outdoor Activities

Cooking class

Beach yoga on site

Japanese garden

Swimming nearby

Family Friendly

Family rooms

Kid meals

Kids' outdoor play equipment

Supervised childcare/activities

Safety & Security

Safety deposit box

Staff adhere to local safety protocols

Fire extinguishers

First aid kit available

Smoke alarms

CCTV outside property

Screens / Barriers between staff and guests for safety

Face masks for guests available

24-hour security

Security alarm

Thermometers for guests provided by property

Key card access

Additional Amenities

Clubhouse

Wine release events

FAQs

Check-in starts at 03:00 PM, while you're expected to check out by 12:00 PM.

Anantara Siam Bangkok Hotel's cancellation policy depends on the room type and the dates it’s booked around. Make sure to select your preferred cancellation policy when selecting your rooms.

Yes, breakfast is included with some of the rooms. However, some rooms include breakfast with an extra charge. Make sure to select your preferred meal option when selecting your room. Subject to availability.

Yes. This hotel provides free wifi connectivity along with your rooms.

Yes, parking is available at this hotel. Charges may apply depending on the room type or parking option. Please check parking availability and pricing during room selection.

No, pets may not be allowed at this hotel. Contact the hotel for more details.

Yes, children can stay at this hotel. Family-friendly rooms and amenities may be available. Some extra charges may apply depending on room configuration and the age of the children.

Need more than 8 rooms?

Property description

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.

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Fine print

Please note the name on the credit card used for the booking should correspond to the guest staying at the property. Please be informed that for children under 12 years staying free of charge with existing beds, breakfast is not included. Please note that the maximum number of extra beds in a room is 1. The fees for the extra bed are as follows: - Without breakfast: THB 2118 per bed, per person, per night - With breakfast: THB 2590 per bed, per person, per night Please note Anantara Siam Bangkok Hotel is pleased to share a series of exciting transformation works taking place from June 2025 through the end of June 2026, as we shape the next chapter of Anantara Siam and further elevate the overall guest experience. Additional upgrades are currently underway at the Kasara Executive Lounge, Garden Terrace Rooms, and Meeting Rooms. These spaces will reopen once improvements are completed, with some areas potentially becoming available ahead of schedule. By March 2026, guests can look forward to beautifully refreshed rooms in the Montathip and Kannika Courts, an enhanced Kasara Executive Lounge, a revitalized Kids’ Club, and upgraded fitness and recreational facilities — all part of our continued commitment to exceptional comfort and memorable stays in the heart of Bangkok.The property will be undergoing renovations from 2025-06-01 until 2026-06-30. During this period, guests may experience some noise or light disturbances, and some hotel facilities and services may not be available.

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9.4

1149 reviews

marisakhe

Couples · November 2025

10/10

ElvenPrince

Solo Travel · October 2025

10/10

alterw2023

Couples · November 2025

4/10

gehans-e

Couples · November 2025

10/10

Amenities

General

Non-smoking rooms

Air conditioning

Terrace

Allergy-free room

Front Desk Services

Luggage storage

Express check-in/check-out

Tour desk

Currency exchange

Concierge service

Cashless payment available

Front desk (limited hours)

Express check-in

Housekeeping on request

Accessibility

Lift / Elevator

No accessible train station shuttle

Internet

Free wired internet

Internet access

Transport & Parking

Offsite parking discounted rates available

Electric bicycle charging station

Parking

Self parking (surcharge)

Airport transportation - pickup (surcharge)

Airport transportation - drop-off (surcharge)

Offsite parking discounted rates available

Secured parking

Garage

Electric bicycle charging station

Accessible train station shuttle

hygiene

Guest rooms disinfected between stays

Cleaning standards that are effective against Coronavirus

Physical distancing rules followed

Hand sanitizer in guest room and key areas

Sanitized tableware & silverware

Shared stationery like menus, pens are removed

Physical distancing in dining areas

Process in place to check health of guests

Fitness & Gym

Fitness facilities (surcharge)

Squash

Personal trainer

Fitness facilities (surcharge)

Pool Facilities

Swimming pool

Free pool cabanas

Exercise/lap pool

Restaurant & Bars

Restaurant

Room service

Coffee Shop on site

Fruits

Food delivered to guest room

Delivered food - securely covered

Mobile app for room service

Happy hour

Snack bar/deli

Spa

Health or beauty spa nearby

Hot tub/Jacuzzi

Massage services

Spa/wellness center services

Steam room

Beauty Services

Manicure

Pedicure

Health or beauty spa nearby

Games, Entertainment & Media

Television in common areas

Cleaning Services

Ironing service

Business & Work

Fax/photocopying

Invoice provided

ATM/banking

Reception hall

Outdoor Activities

Cooking class

Beach yoga on site

Japanese garden

Swimming nearby

Family Friendly

Family rooms

Kid meals

Kids' outdoor play equipment

Supervised childcare/activities

Safety & Security

Safety deposit box

Staff adhere to local safety protocols

Fire extinguishers

First aid kit available

Smoke alarms

CCTV outside property

Screens / Barriers between staff and guests for safety

Face masks for guests available

24-hour security

Security alarm

Thermometers for guests provided by property

Key card access

Additional Amenities

Clubhouse

Wine release events

Anantara Siam Bangkok Hotel

Excellent

1149 reviews

Jul 29th – 30th 2026

1 Room, 2 Travellers

1149 reviews

marisakhe

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ElvenPrince

10/10

alterw2023

4/10

gehans-e

10/10

Amenities

FAQs

Property description

Show more

Fine print

Show more

1149 reviews

marisakhe

10.css-xp6yv9{margin:0;font-size:14px;font-weight:400;line-height:140%;font-family:Futura;color:#453C37;font-size:10px;font-weight:350;color:#7C7068;margin-left:4px;}/10

ElvenPrince

10/10

alterw2023

4/10

gehans-e

10/10

Amenities

FAQs

Fine print

Show more

10/10

10/10