The 1991 Hamburg state election was held on 2 June 1991 to elect the members of the 14th Hamburg Parliament. The incumbent government was a coalition of the Social Democratic Party (SPD) and Free Democratic Party (FDP) led by First Mayor Henning Voscherau. As the SPD won an absolute majority of seats, it formed government alone, and Voscherau continued in office.

After the election, a group of CDU members brought a complaint over deficiencies in the party's nomination process to the Constitutional Court of Hamburg. On 4 May 1993, the court declared the statewide election and five of the seven district elections to be invalid and ordered a repeat. The Bürgerschaft voted nearly unanimously to dissolve itself on 22 June, leading to the 1993 Hamburg state election.^[1]

The table below lists parties represented in the 13th Hamburg Parliament.

Summary of the 2 June 1991 election results for the Hamburg Parliament

Party		Votes	%	+/-	Seats	+/-	Seats %
	Social Democratic Party (SPD)	393,414	48.0	3.0	61	6	50.4
	Christian Democratic Union (CDU)	287,467	35.1	5.4	44	5	36.4
	Green Alternative List (GAL)	59,262	7.2	0.2	9	1	7.4
	Free Democratic Party (FDP)	44,460	5.4	1.1	7	1	5.8
	The Republicans (REP)	9,959	1.2	1.2	0	±0	0
	The Grays – Gray Panthers (GRAUE)	7,219	0.9	New	0	New	0
	Others	17,992	2.2		0	±0	0
Total		819,773	100.0		121	1
Voter turnout			66.1	13.4

• Bürgerschaft Hamburg Landesstimmen