Sherri Ann Lightner (née Schuler; born 1950) is an American politician, businesswoman, engineer, and community activist who served as a member of the San Diego City Council for District 1, from November 2008 to 2017.

She started her professional career as an engineering aide at General Atomics, hired by the High Temperature Gas Cooled Reactor Division.

She then accepted a senior engineering position with the Structural Dynamics group at Rohr Industries to work on high velocity (ballistic) impact analysis.

[citation needed] After another five years at General Atomics, Lightner retired from engineering and formed a small technology hardware and software consulting firm with her husband.

[citation needed] Lightner was one of three candidates to represent San Diego City Council District 1 in the 2008 election.

[7] Lightner replaced termed-out San Diego City councilmember Scott Peters on December 8, 2008.