Celebrities Born on August 21
Who was born on August 21?
Famous people born on August 21 include Usain Bolt, Robert Lewandowski, Mohammed. It is day 233 of the year, and everyone born on this date is a Leo (Fire sign).
Usain Bolt
Jamaican sprinter
Robert Lewandowski
Polish association football player (born 1988)
Mohammed
Personality
Sergey Brin
American billionaire businessman (born 1973)
William IV
King of the United Kingdom and Hanover from 1830 to 1837
Augustin-Louis Cauchy
French mathematician (1789–1857)
Stephen Hillenburg
American marine science educator and artist (1961-2018)
Wilt Chamberlain
American basketball player (1936–1999)
Leonid Andreyev
Russian playwright, author and poet (1871–1919)
John L. Hall
American physicist (born 1934)
Alizée
French pop singer
Princess Margaret, Countess of Snowdon
British princess (1930–2002)
Calendar Facts
Day of the year
#233
of 365 (non-leap)
Days until next
22
days from today
Birthday Number 3 — The Creator
The birthday number is the numerology reduction of the day (day 21 → 3). It adds a personal note to the Life Path number.
Creativity · Expression · Joy · Communication — To channel joy into depth. The integrated 3 brings not just sparkle but substance — creative work that actually moves pe…
Full numerology 3 guide →Season
Summer (Northern Hemisphere) — long days, full energy, peak sun.
Chinese Zodiac
Your Chinese zodiac animal depends on your birth year, not just the day. Find your Chinese zodiac →
August Birthstone — Peridot
Peridot is the one gemstone that glows in the dark — or rather, it glows with a warm yellowish-green light that ancient Egyptians believed was the trapped radiance of the sun. They mined it exclusively on the island of Zabargad in the Red Sea, a volcanic island that was a guarded state secret for ce…
Full Peridot guide →Is August 21 YOUR birthday?
Get your complete birthday report — celebrity twins, zodiac deep-dive, numerology, and life insights.
Generate my birthday report