List of Famous people born on January 21st

Agathe Kanziga Habyarimana, née Kanziga is the widow of former President of Rwanda Juvénal Habyarimana and former First Lady of Rwanda from 1973 until 1994. Kanziga is part of a Hutu lineage that long ruled an independent principality until the late nineteenth century. She was arrested by French authorities on 2 March 2010 in France following the French President Nicolas Sarkozy's visit to Rwanda.

Sir William Flood Webb KBE was a judge of the Supreme Court of Queensland and the High Court of Australia. He was President of the International Military Tribunal for the Far East after the end of World War II.

Charles Pence Slichter was an American physicist, best known for his work on nuclear magnetic resonance and superconductivity.

Valentin Ivanovich Yezhov, alternatively spelled Ezhov, was a Soviet and Russian screenwriter, playwright, writer and professor at VGIK. Honored Artist of the Russian SFSR (1976). Recipient of the Lenin Prize (1961) and the State Prize of the Russian Federation (1997).