Stuart Kingsley (born May 15, 1948, in Stoke Newington, London, England) is considered a pioneer in the Optical Search For Extraterrestrial Intelligence, also known as Optical SETI (OSETI).
While traditional SETI efforts survey the sky in hopes of finding radio transmissions from a nearby civilization, the optical approach to SETI seeks to detect pulsed and continuous wave laser beacons signals in the visible and infrared spectrums.
He left Battelle in 1987 and established his own photonics consultancy business, Fiberdyne Optoelectronics.
Kingsley is the Director of The Columbus Optical SETI Observatory, which is currently working to achieve nonprofit status.
Since 1992 he has been the VP for Engineering at SRICO, Inc. Kingsley retired from Srico, Inc. and returned to England in 2008, meaning that the Columbus Optical SETI Observatory has effectively moved to Bournemouth.