William Scott Cogswell Jr. (born January 14, 1975) is an American politician and businessman who is the mayor of Charleston, South Carolina. A member of the Republican Party, he served from 2016 to 2022 in the South Carolina House of Representatives from the 110th District. Cogswell was elected mayor in 2023, defeating incumbent John Tecklenburg, and is Charleston's first Republican mayor since 1877.
William Cogswell was born on January 14, 1975, in Charleston, South Carolina. He is a distant relative of Colonel Milton Cogswell, who was named a provisional mayor of Charleston in 1868.
Cogswell graduated from at Sewanee, Tennessee, in 1997 with a Bachelor of Arts in history and English. He earned a Master of Science in Real Estate Development from Columbia Graduate School of Architecture, Planning and Preservation in 2003.
A member of the Republican Party, Cogswell served in the South Carolina House of Representatives from the 110th District from 2016 to 2022.
Cogswell was elected mayor on November 21, 2023, defeating incumbent John Tecklenburg in a runoff. He is Charleston's first Republican mayor since 1877.
Endorsements for Cogswell included South Carolina Senator Tim Scott, state representative Mark Smith, and state senator Larry Grooms. South Carolina Republican Party chair Drew McKissick said in a press statement that Cogswell's victory represented "shifting momentum", referencing Republican mayors elected in South Carolina's largest cities: Greenville, Columbia, and Charleston.
Cogswell endorsed Nikki Haley in the 2024 Republican presidential primaries.
On December 15, 2023, Cogswell announced his appointment of senior staff: