1970 United States Senate election in Maryland

1970 United States Senate election in Maryland

← 1964 November 3, 1970 1976 →
 
Nominee J. Glenn Beall Jr. Joseph Tydings
Party Republican Democratic
Popular vote 484,960 460,422
Percentage 50.71% 48.14%

County results
Beall:      50–60%      60–70%      70–80%
Tydings:      50–60%      60–70%

U.S. senator before election

Joseph Tydings
Democratic

Elected U.S. Senator

J. Glenn Beall Jr.
Republican

The 1970 United States Senate election in Maryland took place on November 3, 1970. Incumbent Democratic U.S. Senator Joseph Tydings ran for re-election to a second term, but was narrowly defeated by Republican U.S. Representative J. Glenn Beall Jr.

Tydings had defeated Beall's father, Senator James Glenn Beall six years earlier. Tydings's own adoptive father Millard had served as senator as well as Beall Sr., making this a rare dynastic election between the sons of former senators.

As of 2024, this was the last time a Republican won the Class 1 Senate seat in Maryland.