Koh Phi Phi Leh or Ko Phi Phi Ley (Thai: เกาะพีพีเล, RTGS: Ko Phi Phi Le, pronounced [kɔ̀ʔ pʰīː pʰīː lēː]) is an island of the Phi Phi archipelago, in the Andaman Sea. It belongs to the Krabi province of Thailand.
Koh Phi Phi Ley is the second largest island of the archipelago, the largest one being Ko Phi Phi Don. The island consists of a ring of steep limestone hills surrounding 2 shallow bays, the Maya Bay and Loh Samah. There is also one large shallow fjord like inlet called Pi Ley with a small coral reef at the entrance. 
Controversy arose during the making of the film The Beach due to 20th Century Fox bulldozing and rescaping of the natural beach setting of Koh Phi Phi Leh to make it more "paradise-like". The production altered some sand dunes and cleared some coconut trees and grass to widen the beach. Fox set aside a fund to reconstruct and return the beach to its natural state, however lawsuits were filed as many believed the damage to the ecosystem is permanent and restoration attempts failed. 
The main dive sites are at Loh Samah, Maya Bay entrance and Palong Bay, and are often combined with diving at Ko Bida Noi, a rocky outcrop some 500 meters south of Loh Samah. Maya Bay is popular for diving, and has become even more popular after the 2000 movie The Beach was filmed there. According to the Lonely Planet's Thailand guidebook, the 2004 tsunami dramatically improved the look of Maya Bay. This was due to the fact that the high waves had cleaned up the beach and removed all the landscaping the Fox production team had added.
