List of Famous people born on September 12nd

Marie-Ernestine Serret (1812–1884) was a French painter and pastellist.

Kim Hamilton was an American film and television actress, as well as a director, writer, and artist. Her career spanned more than half a century, from the early 1950s to 2010. Hamilton's early film credits included the 1959 film noir Odds Against Tomorrow opposite Harry Belafonte and The Leech Woman in 1960. She was also one of the first African-American actors to appear on the soap opera Days of Our Lives and was the only African-American to appear in a speaking role on Leave It to Beaver.

Kristína Gavnholt is a Czech badminton player. She competed for Czech Republic at the 2008, 2012 and 2016 Summer Olympics.

Niccolò Acciaioli or Acciaiuoli was an Italian noble, a member of the Florentine banking family of the Acciaioli. He was the grand seneschal of the Kingdom of Naples and count of Melfi, Malta, and Gozo in the mid-fourteenth century. He was the son of Acciaiolo, a wealthy Florentine merchant. He had a sister by the name of Andrea Acciaioli.

Simon-Napoléon Parent was the 12th Premier of the Canadian province of Quebec from October 3, 1900 to March 21, 1905, as well as serving as President of the Quebec Bridge and Railway Company.

Mika Kristian Myllylä was a Finnish cross-country skier who competed from 1992 to 2005. He won six medals at the Winter Olympics, earning one gold, one silver, and four bronzes.