 
The 2020 Wilmington mayoral election was held on Tuesday, November 3, 2020, to elect the mayor of Wilmington, Delaware. Incumbent mayor Mike Purzycki won re-election to a second term. Mike Purzycki first won election in 2016 with 82.2% of the vote.
Purzycki faced a competitive primary, winning the Democratic nomination by a 7.26% margin, a difference of 1,019 votes. Purzycki won 100% of the vote in the general election as he was the only candidate on the ballot.
Democratic primary.
Results.
! scope="col" colspan="2" style="width: 15em" |Party
! scope="col" style="width: 17em" |Candidate
! scope="col" style="width: 5em" |Votes
! scope="col" style="width: 3.5em" |%
! colspan="3" style="text-align:right;" | Total votes
General election.
Results.
! scope="col" colspan="2" style="width: 15em" |Party
! scope="col" style="width: 17em" |Candidate
! scope="col" style="width: 5em" |Votes
! scope="col" style="width: 3.5em" |%
! colspan="3" style="text-align:right;" | Total votes
References.
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