Sioux K. Grigsby | |
|---|---|
 | |
| 23rd Lieutenant Governor of South Dakota | |
| In office 1945–1949 | |
| Governor | Merrill Q. Sharpe George T. Mickelson |
| Preceded by | A. C. Miller |
| Succeeded by | Rex A. Terry |
| Member of the South Dakota Senate | |
| In office 1939-1945 | |
| Member of the South Dakota House of Representatives | |
| In office 1937-1939 | |
| Personal details | |
| Born | December 25, 1873 Sioux Falls, Dakota Territory |
| Died | August 21, 1968 (aged 94) Sioux Falls, South Dakota |
| Political party | Republican |
| Spouse(s) | Alice Josephine Tyler Anna Gilchriest |
| Alma mater | University of South Dakota |
| Profession | attorney, farmer |
Sioux Kingsbury Grigsby (December 25, 1873 – August 21, 1968) was an attorney and politician in the United States state of South Dakota. Grigsby was born into a prominent pioneering family, Kingsbury family in South Dakota and set up a law practice which he would maintain for over 60 years. Grigsby served as state representative, state senator, and Lieutenant Governor of South Dakota from 1945 to 1949.