Motts Creek (also known as Foster's Brook) is a stream in the Town of Hempstead in Nassau County, on the South Shore of Long Island, in New York, United States.

[1] The creek begins underneath Rath Park in Franklin Square, flowing towards the south, west, and southwest to Jamaica Bay.

[2][3] Communities which Motts Creek passes through include Franklin Square, Lynbrook, Malverne, Valley Stream, and Woodmere.

[1][2][3][4] Many portions of the creek have been redirected over the years as a result of suburban development and growth.

[1][2][3] The United States Geological Survey operates a water monitoring station along Motts Creek.