Portal:LGBTQ/Selected anniversaries/12
- 1 – Matthew Shepard (1976–1998), American student
- 1 – Takeda Shingen (1521-1573), Japanese daimyō and Buddhist monk
- 2 – Gianni Versace (1946–1997), Italian fashion designer
- 2 – Jason Collins (1978–), American basketball player
- 4 – Cornell Woolrich (1903–1968), American crime writer
- 5 – Margaret Cho (1968–), American comedian, actress, and author
- 6 – Tom Hulce (1953–), American actor and theater producer
- 6 – Agnes Moorehead (1900–1974), American actress
- 6 – William II of the Netherlands (1792–1849), Dutch monarch
- 7 – Willa Cather (1873–1947), American writer
- 7 – Hurd Hatfield (1917–1998), American actor
- 7 – Jane Castor (1960–), American politician and former police chief, Mayor of Tampa, Florida
- 8 – Brendan Burke (1988–2010), Canadian hockey player
- 8 – Norman Douglas (1868–1952), British writer
- 9 – Elvira Kurt (1961–), Canadian comedian
- 10 – Emily Dickinson (1830–1886), American poet
- 10 – Tommy Kirk (1941–), American actor and businessman
- 10 – Raven-Symoné (1985–), American actress and singer
- 10 – Mark Takano (1960–), American Democratic congressman (California)
- 11 – Jean Marais (1913–1998), French actor
- 12 – Brandon Teena (1972–1993), American trans man, subject of the Academy Award-winning 1999 film Boys Don't Cry
- 13 – Anton Hysén (1990–), Swedish soccer player
- 14 – Jobriath (1946–1983), American rock musician and actor
- 14 – Amini Fonua (1989–), Tongan swimmer
- 15 – Nero (37-68), Roman emperor, 54-68 AD
- 16 – Noël Coward (1899–1973), English playwright, composer, actor, and singer
- 16 – Kanako Otsuji (1974–), Japanese LGBT rights activist, and politician
- 17 – Deborah Sampson (1760–1827), American soldier who fought in the American Revolutionary War disguised as a man
- 17 – Paul Cadmus (1904–1999), American painter
- 17 – Jacqueline Wilson (1945–), English children's literature novelist
- 17 – Sarah Paulson (1975–), American actress
- 18 – Christina, Queen of Sweden (1626–1689), Swedish monarch
- 18 – Brian Orser (1961–), Canadian figure skater and coach, 1987 World Champion
- 19 – Jean Genet (1910–1986), French novelist, playwright, and political activist
- 20 – Elsie de Wolfe (1865–1950), American actress, interior decorator, and author
- 20 – Prince George, Duke of Kent (1902–1942), British royalty
- 21 – Michael Tilson Thomas (1944–), American conductor, pianist, and composer
- 22 – Marc Allégret (1900–1973), French screenwriter and film director
- 24 – Galba (3 BC-69 AD), Roman emperor, first in the Year of Four Emperors
- 24 – Brenda Howard (1946–2005), American LGBT activist
- 25 – Albert Cashier (1843-1915), Irish-American trans Union Army soldier
- 25 – Quentin Crisp (1908–1999), English writer, raconteur, and gay icon
- 25 – Ismail Merchant (1936–2005), Indian-born film producer and director
- 26 – David Sedaris (1956–), American humorist, comedian, author, and radio contributor
- 27 – Marlene Dietrich (1901–1992), German actress and singer
- 27 – Guido Westerwelle (1961–2016), German politician and former Vice Chancellor of Germany
- 28 – Lili Elbe (1882-1931), Danish artist, subject of The Danish Girl novel/film
- 29 – Elsa Gidlow (1898–1986), Canadian-American poet, writer of first openly lesbian love poetry published in North America
- 29 – Billy Tipton (1914-1989), American jazz musician, bandleader, and talent broker
- 29 – Katherine Moennig (1977–), American actress
- 29 – Lilly Wachowski (1967–), American film director, screenwriter & producer
- 30 – Titus (31-81), Roman emperor, 79-81 AD.
- 30 – Paul Bowles (1910–1999), American expatriate composer, author, and translator
- 31 – Orry-Kelly (1897–1964), Australian costume designer
- 31 – Jennifer Higdon (1962–), American composer
- 31 – Diana Sacayán (1975–2015), Argentinian transgender activist