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40 members of the Massachusetts Senate 396 members of the Massachusetts House Majority vote of each house needed to win | |||||||||||||||||
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The 1803 United States Senate election in Massachusetts was held in February 1803.
Incumbent Senator Jonathan Mason, who had been elected to fill the unexpired term of Benjamin Goodhue, did not run for a full term in office. The Massachusetts General Court deliberated and elected State Senator and former diplomat John Quincy Adams, son of former President John Adams, on the fourth ballot. This is the first election in the history of the United States where the winner of the Senate in Massachusetts would eventually become president of the United States. This is also the first election to feature a candidate who would eventually become president of the United States.