The lieutenant governor of South Dakota is the second-ranking member of the executive branch of South Dakota state government and also serves as presiding officer of the South Dakota Senate.

Seven lieutenant governors have gone on to be elected governor in their own right: Charles N. Herreid (1900 & 1902), Frank M. Byrne (1912 & 1914), Peter Norbeck (1916 & 1918), William H. McMaster (1920 & 1922), Carl Gunderson (1924), Nils Boe (1964 & 1966) and Dennis Daugaard (2010 & 2014).

Three others succeeded to the office of governor: Harvey L. Wollman, Walter Dale Miller, and Larry Rhoden.

The current lieutenant governor is Tony Venhuizen, since 30 January 2025.

Democratic (6) Republican (34) Italics indicate next-in-line of succession for states and territories without a directly elected lieutenant governor or whose lieutenant governor office is vacant: