This is a list of notable events in the history of LGBT rights that took place in the year 1991.

Events

• U.S. state of Connecticut bans sexual orientation discrimination in the private sector.^[1]
• U.S. state of Hawaii bans sexual orientation discrimination in the private sector.^[1]

January

• 29 — Minnesota governor Arne Carlson issues an executive order banning sexual orientation discrimination in the public sector.^[2]

April

• 16 — The United Kingdom Department of Health issued guidance banning social workers from allowing gay couples to become foster parents.^[3]

May

• 1 — Three same-sex couples file suit in Hawaii alleging that the state constitution guarantees their right to marry.^[4]
• 19 — The Executive Council of Hong Kong votes to decriminalize homosexuality.

August

• 16 — New Jersey governor James Florio issues an executive order prohibiting sexual orientation discrimination in the public sector.^[5]

December

• 17 — The Minnesota Court of Appeals, overturning a lower court ruling in In re Guardianship of Kowalski, awards guardianship of Sharon Kowalski, brain-damaged in an accident eight years earlier, to her lesbian partner Karen Thompson.^[6]