Who were famous painters in 1950?

Answer 1

Pablo Picasso was in the latter stage of his career in the 1950's. Nicolas de Stael, an artist who achieved fame and success within his own lifetime, was at the pinnacle of his career in the early 50s before he retired in 1953. Some other notable painters of the 1950s:

Abstract Expressionism, Action Painting, Color Field, etc.: Jackson Pollock, Franz Kline, Willem de Kooning, Clyfford Still, Adolph Gottlieb, Hans Hofmann, Mark Rothko

Progressive Artists (India): Bal Chabda, Manishi Dey, Makul Dey, V.S. Gaitonde, Ram Kumar, Tyeb Mehta, Akbat Padamese

Realism: Georgio Morandi, Andrew Wyeth

pre-Pop Art: Jasper Johns, Jr.

Figurative: Batlhus Klossowski, Jean Philippe Arthur Debuffet

Expressionism: Francis Bacon

Answer 2

If you mean painters active in the 1950s there are for instance: Pablo Picasso, Salvador Dalí and Henri Matisse. If you mean painters BORN in the 50s there are: Anthony Gormley, Cindy Sherman, Keith Haring.