| Election Name: | 1970 South Dakota gubernatorial election |
| Country: | South Dakota |
| Flag Year: | 1963 |
| Type: | Presidential |
| Ongoing: | no |
| Previous Election: | 1968 South Dakota gubernatorial election |
| Previous Year: | 1968 |
| Next Election: | 1972 South Dakota gubernatorial election |
| Next Year: | 1972 |
| Election Date: | November 3, 1970 |
| Image1: | File:Dick Kneip.jpg |
| Nominee1: | Richard F. Kneip |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 131,616 |
| Percentage1: | 54.85% |
| Nominee2: | Frank Farrar |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 108,347 |
| Percentage2: | 45.15% |
| Map Size: | 260px |
| Governor | |
| Before Election: | Frank Farrar |
| Before Party: | Republican Party (United States) |
| After Election: | Richard F. Kneip |
| After Party: | Democratic Party (United States) |
The 1970 South Dakota gubernatorial election was held on November 3, 1970. Primary elections were held on June 2, 1970. Incumbent Republican Governor Frank Farrar was defeated by Democratic nominee Richard F. Kneip who won 54.85% of the vote.
This is the last time that an incumbent governor of South Dakota lost re-election.