List of Famous people born on January 21st

Lee Sun-ho, mononymously credited as Andy (Korean: 앤디), is a South Korean singer, rapper and the youngest member of six-member boy band Shinhwa. Besides rapping for his band, Andy has ventured out into television acting, musicals, and solo singing. Andy is also the producer of duo Jumper and boy bands Teen Top, 100% and UP10TION.

Zach Helm is an American film director, producer, and screenwriter. He wrote the internationally-performed stage play Good Canary, wrote and directed the film Mr. Magorium's Wonder Emporium (2007), and has staged one-man performance pieces, most notably his revival of Spalding Gray's Interviewing the Audience.

Anna Polony is a Polish stage, film and television actress, as well as the stage director and former Prorector of Cracow's Academy of Dramatic Arts. The media dubbed Polony 'the First Lady of Polish Theatre' or 'the Dame of the Polish Theatre".

André Lichnerowicz was a noted French differential geometer and mathematical physicist of Polish descent.

Albuíno Cunha de Azeredo was a Brazilian civil engineer and politician. He served as the Governor of Espírito Santo from 1991 until 1995 as a member of the Democratic Labour Party (PDT).