Angle Lake is an L-shaped lake in SeaTac, Washington, United States, occupying 102 acres (0.41 km2) between Interstate 5 and State Route 99. The lake most likely was so named on account of its outline. On the western shore is a 10-acre (0.040 km2) park, Angle Lake Park, administered by the City of SeaTac Parks and Recreation department. The remainder of the shoreline is ringed with private homes. The Angle Lake light rail station is named for the lake, and is located to the southwest.