Koh Ta Kiev (Khmer: កោះតាគៀវ, “Ancestor Kiev’s Island” (named "Ile de la Baie" during the French colonial period) is the biggest of a small group of Cambodian islands situated 4 km off Otres beach, Sihanoukville City, and 1 km off the coast of Ream National Park, Sihanoukville Province. Its predominantly forested area of 6.70 km (3 sq mi) is mostly flat with hills at some points.

There is also a small fishing village on the island's east side. Apart from the Cambodian Navy, which maintains a small base with a port, no infrastructure exists.

Three beaches attract travelers and tourists. There are a few guesthouses and a campsite. After many years of attracting individual visitors, large-scale resort development is planned.

The island is accessible by ferry or speedboat from Ream beach, not far from Sihanoukville airport.

• Koh Seh
• Koh Russei
• Ream National Park
• List of islands of Cambodia
• Sihanoukville (city)