Lake Sammamish, lake in King County, Washington state, United States of America

Lake Sammamish is a body of water in King County, Washington, stretching across several miles with varied shoreline conditions. Its edges alternate between forested areas and residential neighborhoods, with public parks interspersed throughout that provide access for swimming, boating, and other waterfront activities.

The lake's Lushootseed name is sc̓ababš, meaning "little lake"; the Sammamish people lived along its entire length, and the Sammamish River that drains it at Redmond carries their name. The city of Sammamish was incorporated in 1999 as suburban growth spread around the shore.

The Sammamish people call the lake sc̓ababš, meaning "little lake" in Lushootseed, and the Sammamish River that drains it at Redmond carries their name. The lake's name thus comes from the native people who once lived along its entire length. Today the shoreline is shared by Marymoor Park, Lake Sammamish State Park and the East Lake Sammamish Trail.

Access points differ: Lake Sammamish State Park at the south end has nine public boat launches reached through a separate entrance, with parking and restrooms. Redmond's Idylwood Park opens the west shore, and Vasa Park Resort in Bellevue offers a launch for a fee. A public slalom course runs west to east at the far north end.

In 1974 the lake's name entered criminal history: Ted Bundy abducted two women in daylight from the state park beach on July 14, faking an injury to ask for help. In 1991 Randy Roth drowned his fourth wife Cynthia after setting out in a raft from Redmond's Idylwood Park. Fewer than 100 kokanee salmon are estimated to remain in the lake.