Janina Domańska (July 28, 1913 – February 2, 1995) was an award-winning Polish artist, author and illustrator. Domańska attended the Academy of Fine Arts in Warsaw, Poland. She moved to the United States in 1952, where she later married writer Jerzy Laskowski. Domańska is best known for her self-illustrated children's books. She won Caldecott Honors for her book If All the Seas Were One Sea in 1971.
Her other titles include The Tortoise and the Tree, Din Dan Don It's Christmas, Spring is, and The Best of the Bargain.