| Election Name: | 1946 Colorado gubernatorial election |
| Country: | Colorado |
| Flag Year: | 1911 |
| Type: | Presidential |
| Ongoing: | no |
| Previous Election: | 1944 Colorado gubernatorial election |
| Previous Year: | 1944 |
| Next Election: | 1948 Colorado gubernatorial election |
| Next Year: | 1948 |
| Election Date: | November 5, 1946 |
| Nominee1: | William Lee Knous |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 174,604 |
| Percentage1: | 52.11% |
| Nominee2: | Leon Lavington |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 160,483 |
| Percentage2: | 47.89% |
| Map Size: | 250px |
| Governor | |
| Before Election: | John Charles Vivian |
| Before Party: | Republican Party (United States) |
| After Election: | William Lee Knous |
| After Party: | Democratic Party (United States) |
The 1946 Colorado gubernatorial election was held on November 5, 1946. Democratic nominee William Lee Knous defeated Republican nominee Leon Lavington with 52.11% of the vote, becoming the first Democrat to win the governorship since 1936.
Primary elections were held on September 10, 1946.[1]