Thomas McElveen (born February 17, 1978) is a former South Carolina state senator, representing the 35th district.
McElveen earned a bachelor's degree from Davidson College in 2000 and a JD from the University of South Carolina in 2003.
McElveen served as both a prosecutor and public defender for Sumter County.
McElveen served in the South Carolina Senate from 2012 to 2024.
He served on the Senate Agriculture and Natural Resources, Corrections and Penology, Fish, Game and Forestry, Judiciary, and Rules committees.