| Election Name: | 1884 Missouri gubernatorial election |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1880 Missouri gubernatorial election |
| Previous Year: | 1880 |
| Next Election: | 1888 Missouri gubernatorial election |
| Next Year: | 1888 |
| Election Date: | November 4, 1884 |
| Nominee1: | John S. Marmaduke |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 218,885 |
| Percentage1: | 50.05% |
| Nominee2: | Nicholas Ford |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 207,939 |
| Percentage2: | 47.55% |
| Map Size: | 270px |
| Governor | |
| Before Election: | Thomas Theodore Crittenden |
| Before Party: | Democratic Party (United States) |
| After Election: | John S. Marmaduke |
| After Party: | Democratic Party (United States) |
The 1884 Missouri gubernatorial election was held on November 4, 1884 and resulted in a victory for the Democratic nominee, former Confederate general John S. Marmaduke, over the Republican candidate, former Congressman David Patterson Dyer, and Populist nominee John A. Brooks.
Marmaduke died in 1887 and was replaced for the remainder of this term by Lt. Gov. Albert P. Morehouse.[1]