List of Famous people born on April 21st

Takuro Fujii is a Japanese competitive swimmer and two-time Olympic medalist. He won the bronze medal by swimming the butterfly leg in the 4 × 100 m medley relay at the 2008 Summer Olympics. He followed this with a silver medal at the 2012 Summer Olympics, again in the medley relay, but this time by swimming the freestyle (anchor) leg.

Robert Mercer Taliaferro Hunter was a Virginia lawyer, politician and plantation owner. He was a U.S. Representative, Speaker of the House (1839–1841), and U.S. Senator (1847–1861). During the American Civil War, Hunter became the Confederate States Secretary of State (1861–1862) and then a Confederate Senator (1862–1865) and critic of President Jefferson Davis. After the war, Hunter failed to win re-election to the U.S. Senate, but did serve as the Treasurer of Virginia (1874–1880) before retiring to his farm. After fellow Democrat Grover Cleveland was elected President of the United States in 1884, Hunter became the customs collector for the port of Tappahannock until his death.

Vincent Pallotti was an Italian ecclesiastic and a saint. Born in Rome, he was the founder of the Society of the Catholic Apostolate later to be known as the "Pious Society of Missions". The original name was restored in 1947. He is buried in the church of San Salvatore in Onda. He is considered the forerunner of Catholic Action. His feast day is 22 January.