The New York City mayoral election of 1981 occurred on Tuesday, November 3, 1981, with Democratic incumbent Mayor Ed Koch being re-elected to a second term by a landslide margin. Koch won both the Democratic and Republican nominations and appeared on the ballot with both of their lines. He only faced opposition from third parties in the election. Koch received an overwhelming 74.64% of the vote citywide. Koch also swept all five boroughs by landslide margins, breaking 60% of the vote in Manhattan and breaking 70% of the vote in Brooklyn, the Bronx, Queens and Staten Island.