Which character made Astrid Lindgren internationally famous?

The character who made Astrid Lindgren internationally famous is Pippi Longstocking.

Lindgren’s widespread popularity began in 1945 with the publication of Pippi Långstrump. As a nine-year-old girl who possesses enormous physical strength, lives independently with her horse and monkey, and rejects the conformist demands of society, Pippi became a beloved figure in children’s literature worldwide. Her stories have been translated into numerous languages and adapted into various films and television programs, cementing her status as an iconic character in Swedish literature.12