Ko Phi Phi Lee is an island of the Phi Phi archipelago, in the Andaman Sea. It belongs to the Krabi province of Thailand.
Ko Phi Phi Lee 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 sorrounding a shallow bay, the Mahya Bay. The bay is popular for diving, and has become even more popular after the movie The Beach was filmed there.