S-mount

S-mount may refer to:


 * Kodak S-mount, a combined bayonet and thread lens mount for ciné lenses and cameras between 1948 and 1961
 * Nikon S-mount, a dual-bayonet lens mount used for a range of Nikon rangefinder cameras between 1948 and 2005
 * Leica S-mount, a fully electronic bayonet lens mount used for Leica medium-format SLRs such as the S2 since 2008
 * S-mount (CCTV lens), a threaded lens mount for CCTV lenses and webcams