Twin Lakes is a complex of two large lakes in Lake Clark National Park in the U.S. state of Alaska, near the northeast corner of Lake and Peninsula Borough. It contains a 6-mile-long (9.7 km) upper lake and a smaller 4-mile-long (6.4 km) lower lake, joined by a short connecting stream. The lakes outflow westward into the Chilikadrotna River. It is quite remote and unpopulated, except in the late summer as it is a popular hunting spot.