May 21 zodiac sign, birthday facts & famous birthdays
If your birthday is May 21, your zodiac sign is Gemini ♊, your birthstone is Emerald and your birth flower is Lily of the valley or Hawthorn. You share your birthday with Alexander Pope and Andrei Sakharov.
- Zodiac sign
- ♊ Gemini
- Element
- Air
- Ruling planet
- Mercury
- Birthstone
- Emerald
- Birth flower
- Lily of the valley, Hawthorn
- Day of year
- 141st
- Popularity
- 132nd of 366
- Half birthday
- November 21
- Next May 21
- May 21
Days until the next May 21: —
May 21 zodiac: Gemini ♊
People born on May 21 fall under Gemini, the 3rd sign of the zodiac, which covers birthdays from May 21 to June 20. Gemini is a mutable air sign ruled by Mercury, and its symbol is the twins.
Cusp birthday: May 21 sits on the boundary between Gemini and Taurus. The exact moment the Sun changes signs shifts slightly from year to year, so people born on this date may want to check their birth year and time.
Gemini, the Twins, is the sign of conversation and curiosity. In astrology it is linked with ideas, language and variety, and Geminis are often pictured as lively people who can talk to anyone about anything.
Famous people born on May 21
Well-known people who celebrate their birthday on May 21, ranked by how widely they are covered on Wikipedia.
- Born 1688English poet (1688–1744)
- Born 1921Soviet nuclear physicist and human rights activist (1921–1989)
- Born 1955Secretary of the Security Council of the Russian Federation since 2024 and former Russian defense minister
- Born 1944Former President of Ireland and former United Nations High Commissioner for Human Rights
- Born 1986Croatian association football player (born 1986)
- Born 1860Dutch physiologist
- Born 1844French painter (1844–1910)
- Born 1972American rapper (1972–1997)
- Born 1843Swiss politician and lawyer (1843-1914)
- Born 1937Former General Secretary of the Workers' Party of Ethiopia
- Born 1855Belgian poet (1855-1916)
- Born 1914French writer and diplomat (1914–1980)
- Born 1843French jurist (1843–1918)
- Born 1759French statesman (1759-1820)
- Born 1799British fossil collector and palaeontologist (1799–1847)
- Born 1936German American biologist (1999 Nobel Prize)
- Born 1987Japanese association football player
- Born 189551st President of Mexico
- Born 1959President of the Maldives from 2013 to 2018
- Born 1994British diver
- Born 1979Japanese association football player
- Born 1849French painter (1849-1928)
- Born 1966American actress (born 1966)
- Born 1930Australian politician, 22nd Prime Minister of Australia (1930-2015)
- Born 1952American actor and professional wrestler
- Born 1934Swedish biochemist
- Born 1985British professional road racing cyclist
- Born 1962German association football player
- Born 1992Japanese association football player
- Born 17751st Prince of Canino and Musignano (1775–1840)
- Born 1904American jazz pianist and composer (1904–1943)
- Born 1980Belgian-Australian musician (born 1980)
- Born 1970Serbian association football player
- Born 1917Canadian actor (1917–1993)
- Born 1989Welsh association football player (born 1989)
- Born 1817German philosopher (1817-1881)
- Born 1942Czech footballer
- Born 1916American novelist (1916–1997)
- Born 1864Archduchess of Austria (1864–1945)
- Born 1990Slovenian footballer (born 1990)
May 21 birthstone
Emerald (green). Emerald is linked with rebirth, love and wisdom, and it was a favourite of Cleopatra.
May 21 birthday facts
- May 21 is the 141st day of the year (142nd in leap years), leaving 224 days until the end of the year.
- May 21 is the 132nd most common birthday in the U.S., with about 11,298 babies born on an average May 21(1% more than a typical day).
- In the Northern Hemisphere, May 21 birthdays fall in spring. In the Southern Hemisphere they fall in autumn.
- Babies born on May 21 were most likely conceived around August 29 of the previous year (about 38 weeks earlier).
- Your half birthday is November 21, six months after May 21.
- May 21 always falls after Chinese New Year, so your Chinese zodiac animal is simply the one for your birth year.
Born on May 21? Get your full report
Add your birth year to see your exact age, the weekday you were born, your Chinese zodiac, generation and life path number.
More May birthdays
Frequently asked questions
What zodiac sign is May 21?
May 21 falls under Gemini ♊, which runs from May 21 to June 20. Because May 21 is on the edge of the sign, some astrologers say people born that day are on the Gemini–Taurus cusp.
What is the birthstone for May 21?
The birthstone for May 21 is Emerald, the May birthstone. The May birth flowers are Lily of the valley and Hawthorn.
Who are famous people born on May 21?
Famous people born on May 21 include Alexander Pope (1688), Andrei Sakharov (1921), Sergei Shoigu (1955), Mary Robinson (1944), Mario Mandžukić (1986), Willem Einthoven (1860).
How common is a May 21 birthday?
May 21 is the 132nd most common birthday out of 366, based on U.S. births from 1994 to 2014, with about 11,298 babies born on an average May 21.
What day of the year is May 21?
May 21 is the 141st day of the year in common years and the 142nd day in leap years.