Clarence E. Coyne | |
|---|---|
| Lieutenant Governor of South Dakota | |
| In office January 1929 – May 1929 | |
| Governor | William J. Bulow |
| Preceded by | Hyatt E. Covey |
| Succeeded by | John T. Grigsby |
Clarence E. Coyne was an American politician. A Republican, he served as the Secretary of State of South Dakota from November of 1922 to January of 1927 and as the Lieutenant Governor of South Dakota from January to May 1929. He died while in office.