The 1834 Boston mayoral election saw the election of incumbent Theodore Lyman II. It was held on December 8, 1834.
Incumbent mayor Lyman was a Democrat. Both the Democrats and the Whigs nominated Lyman, leaving him formally unopposed. He was also supported by other tickets such as the "Grocer's Ticket". The decision for the Whigs not to put forth their own candidate came despite their dominance in the city's other municipal races in coinciding election.