| Election Name: | 1956 Colorado gubernatorial election |
| Country: | Colorado |
| Flag Year: | 1911 |
| Type: | Presidential |
| Ongoing: | no |
| Previous Election: | 1954 Colorado gubernatorial election |
| Previous Year: | 1954 |
| Next Election: | 1958 Colorado gubernatorial election |
| Next Year: | 1958 |
| Election Date: | November 6, 1956 |
| Image1: | File:Stephen McNichols 1962.jpg |
| Nominee1: | Stephen McNichols |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 331,283 |
| Percentage1: | 51.34% |
| Nominee2: | Donald Brotzman |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 313,950 |
| Percentage2: | 48.66% |
| Map Size: | 250px |
| Governor | |
| Before Election: | Edwin C. Johnson |
| Before Party: | Democratic Party (United States) |
| After Election: | Stephen McNichols |
| After Party: | Democratic Party (United States) |
The 1956 Colorado gubernatorial election was held on November 6, 1956. Democratic nominee Stephen McNichols defeated Republican nominee Donald G. Brotzman with 51.34% of the vote.
Primary elections were held on September 11, 1956.[1]
McNichols narrowly won the election by being able to capture majority of the vote in Colorado's then two largest cities and counties: Denver and Pueblo. He also won Adams, Denver and Pueblo counties along with several rural farming counties and the coal counties of southern Colorado.[2] Meanwhile, Brotzman performed best in large farming areas as well as in several cities like Fort Collins, Boulder, and Golden. Factors like Democrats being better organized along with McNichols being a popular lieutenant governor to also popular governor Edwin Johnson helped propel him to victory.