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Welcome to JW Marriott Hotel Istanbul Marmara Sea

Be inspired and feel the splendor at our seafront oasis

The 5 Star JW Marriott Hotel Istanbul Marmara Sea is where tranquility meets the enthralling metropolis. Our luxury hotel offers a district-defining retreat in the heart of Ataköy with awe-inspiring sea views at every turn. Resplendent décor, world-class dining, and rejuvenating spa and wellness spaces invite visitors to socialize, create meaningful memories, or escape and restore their sense of balance. Each of our 204 spacious rooms and suites, along with 27 residences spread across 17 stories, are equipped with modern comforts and designed with luxury in mind. Easy access to the heart of Istanbul is paramount. The wondrous sights of the city such as Hagia Sophia, Topkapı Palace, Galata Port, Dolmabahce Palace, and Taksim Square are all within easy reach. Our hotel offers enriching experiences designed to bring guests fun-filled, creative adventures, thoughtfully curated to leave them feeling inspired and connected throughout their journey.

Explore Our Exclusive Residences
Experience luxury and comfort in our exclusive residences. Enjoy spacious accommodations, premium amenities, and unparalleled service. Perfect for longer stays, our homelike environment offers the privacy and convenience of a personal home, ideal for families, couples, and business travelers.Inquire Now: mhrs.istms.reservation@jwmarriot.com

Rooms & Suites


Check-in: 3:00 pm

Check-out: 12:00 pm

Minimum Age to Check In: 18

Smoke Free Property

Pet Policy

Pets Not Allowed


Complimentary On-Site Parking

Electric Car Charging Station

More Ways to Enjoy Your Stay

ISTMS Spa Entrance


La Vallée SPA at JW Marriott Marmara Sea

Luxuriate in one of the two indoor pools or the contemporary Turkish baths, stop by our green juice bar to nourish your body, or book a spa treatment with our experienced therapists, during which you’ll be pampered with the finest La Vallée products.

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La Valleeé Fitness


La Vallée Spa Fitness

Maintain your fitness routine at our hotel gym featuring state-of-the-art equipment

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  • ISTMS Kapalı Havuz
    Indoor Pool
  • ISTMS Açık Yüzme Havuzu
    Swimming Pool - Open from May to October only
  • Photo Coming Soon
Unleash the Power of Sustainable Travel!
As part of our dedication to sustainable practices, we offer our guests the unique opportunity to experience our TOGG electric vehicle through test drives. Feel the power of electric mobility, and witness how luxury and sustainability seamlessly coexist.


JW Marriott Hotel Istanbul Marmara Sea

Atakoy 2-5-6 Kisim Mah Rauf Orbay Caddesi No 2/1 L B, Bakirkoy, Istanbul, Türkiye, 34158

Tel: +90 212-4130101


2021 Tripadvisor Travelers Choice
2021 Trip Advisor Travelers Choice Hotel
Green Key Award
Green Key Award
Turkey Sustainable Tourism logo
Sustainable Tourism Award

Property Details

Frequently Asked Questions