| Election Name: | 1978 Maryland gubernatorial election |
| Country: | Maryland |
| Type: | Presidential |
| Ongoing: | no |
| Previous Election: | 1974 Maryland gubernatorial election |
| Previous Year: | 1974 |
| Next Election: | 1982 Maryland gubernatorial election |
| Next Year: | 1982 |
| Election Date: | November 7, 1978 |
| Image1: | File:Maryland Governor Harry Hughes speaking at Fort Belvoir, Feb 16, 1985.jpg |
| Nominee1: | Harry Hughes |
| Party1: | Democratic Party (United States) |
| Running Mate1: | Samuel Bogley |
| Popular Vote1: | 705,910 |
| Percentage1: | 70.62% |
| Nominee2: | John Glenn Beall Jr. |
| Party2: | Republican Party (United States) |
| Running Mate2: | Aris T. Allen |
| Popular Vote2: | 293,635 |
| Percentage2: | 29.38% |
| Map Size: | 295px |
| Governor | |
| Before Election: | Marvin Mandel |
| Before Party: | Democratic Party (United States) |
| After Election: | Harry Hughes |
| After Party: | Democratic Party (United States) |
The 1978 Maryland gubernatorial election was held on November 7, 1978. Democratic nominee Harry Hughes defeated Republican nominee John Glenn Beall Jr. with 70.62% of the vote.
Primary elections were held on September 12, 1978.[1]