List of Famous people born on January 21st

Mário Moraes Chermont, better known as simply Mário Chermont, was a Brazilian politician and lawyer from the state of Rio de Janeiro that represented the state of Pará at national level.

Erich Eduard "Edi" Schönecker was an Austrian athlete, football (soccer) player, and architect. He competed at the 1908 Summer Olympics in London.

Gustaf Nyström was a Finnish architect. Nyström has been described as one of the most important architects in Finland at the end of the 19th century and the beginning of the 20th century. He was active both as an influential teacher, as an architect in his own right, and as an official involved in groundbreaking urban planning projects.

Virgilio Marchi (1895–1960) was an Italian architect and art director. He designed the sets for more than fifty films during his career. Marchi was stylistically identified with the Futurist movement.