| Election Name: | 1899 Maryland gubernatorial election |
| Country: | Maryland |
| Flag Image: | Flag of Maryland (pre-1904).png |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1895 Maryland gubernatorial election |
| Previous Year: | 1895 |
| Next Election: | 1903 Maryland gubernatorial election |
| Next Year: | 1903 |
| Election Date: | November 7, 1899 |
| Nominee1: | John Walter Smith |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 128,409 |
| Percentage1: | 51.12% |
| Nominee2: | Lloyd Lowndes Jr. |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 116,286 |
| Percentage2: | 46.29% |
| Map Size: | 280px |
| Governor | |
| Before Election: | Lloyd Lowndes Jr. |
| Before Party: | Republican Party (United States) |
| After Election: | John Walter Smith |
| After Party: | Democratic Party (United States) |
The 1899 Maryland gubernatorial election took place on November 7, 1899.
Incumbent Governor Republican Lloyd Lowndes Jr. was defeated by Democratic candidate John Walter Smith.