| Election Name: | 1930 South Carolina Democratic gubernatorial primary runoff |
| Country: | South Carolina |
| Flag Year: | 1930 |
| Type: | presidential |
| Vote Type: | Popular |
| Party Name: | Democratic Party (United States) |
| Previous Election: | 1926 South Carolina gubernatorial election |
| Previous Year: | 1926 |
| Next Election: | 1934 South Carolina gubernatorial election |
| Next Year: | 1934 |
| Image1: | File:Ibra C. Blackwood, 1933.jpg |
| Candidate1: | Ibra Blackwood |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 118,721 |
| Percentage1: | 50.21% |
| Candidate2: | Olin Johnston |
| Party2: | Democratic Party (US) |
| Popular Vote2: | 117,752 |
| Percentage2: | 49.80% |
| Map Size: | 220px |
| Governor of South Carolina | |
| Before Election: | John Gardiner Richards Jr. |
| Before Party: | Democratic Party (United States) |
| After Election: | Ibra Blackwood |
| After Party: | Democratic Party (United States) |
The 1930 South Carolina gubernatorial election was held on November 4, 1930, to select the governor of the state of South Carolina. Ibra Charles Blackwood won the contested Democratic primary and ran unopposed in the general election becoming the 97th governor of South Carolina.
The South Carolina Democratic Party held their primary for governor in the summer of 1930 and it attracted many politicians because of the change in 1926 to the South Carolina constitution providing for a four-year term. Blackwood emerged victorious from the closely contested runoff against Olin D. Johnston and effectively became the next governor of South Carolina because there was no opposition in the general election.
| Democratic Primary | ||
|---|---|---|
| Candidate | Votes | % |
| Olin D. Johnston | 58,653 | 24.9 |
| 43,859 | 18.6 | |
| 39,477 | 16.7 | |
| Ashton H. Williams | 36,488 | 15.5 |
| William H. Keith | 28,780 | 12.2 |
| R. Beverly Herbert | 17,102 | 7.3 |
| W.W. Smoak | 10,193 | 4.3 |
| John J. McMahan | 1,113 | 0.5 |
| Democratic Primary Runoff | |||
|---|---|---|---|
| Candidate | Votes | % | ±% |
| Ibra Charles Blackwood | 118,721 | 50.2 | +31.6 |
| Olin D. Johnston | 117,752 | 49.8 | +24.9 |
The general election was held on November 4, 1930, and Ibra Charles Blackwood was elected the next governor of South Carolina without opposition on account of South Carolina's effective status as a one-party state. Being a non-presidential election and few contested races, turnout was the second lowest ever for a gubernatorial election in South Carolina.
|-| | colspan=5 |Democratic hold|-