Kelsey Creek
 Kelsey Creek is a creek in Bellevue Washington on Seattle's Eastside. Originating in the wetlands in the Lake Hills Greenbelt between Phantom Lake and Larsen Lakes it flows through Kelsey Creek Park and becomes the Mercer Slough just west of Interstate 405. The centerpiece of the largest wetland adjacent to Lake Washington (367 acres) the slough empties into the East Channel of Lake Washington at Interstate 90.