The 1973 New York City mayoral election occurred on Tuesday, November 6, 1973. Incumbent mayor John Lindsay did not run for a third term in office. New York City Comptroller Abraham Beame was elected to succeed him with a decisive majority amongst a highly divided field.
Beame also swept all five boroughs, breaking 60% of the vote in Brooklyn, winning majorities in Queens and the Bronx, and winning with pluralities in Manhattan and Staten Island. Beame's closest competitor was state senator John Marchi, who received 16.07% of the vote running on the Republican and Integrity lines. This was the first election since 1953 in which the winning candidate did not run on the Liberal Party ticket.
After Mario Procaccino won the 1969 Democratic primary with only 33 percent of the vote as the only conservative in the field, primaries were reformed to require at least 40 percent to win outright. If no candidate received more than 40 percent, the race would proceed to a run-off election between the top two vote-getters.