Sheila Agnes Egoff OC (January 20, 1918 – May 22, 2005) was a Canadian librarian, literary critic, and historian who was Canada's first professor of children's literature.

[4] Alongside her studies, she worked as a librarian at Toronto Public Library where she curated the Osborne Collection of classic British children's fiction.

[1][5] Known as a literary critic and historian,[6] she wrote books, developed graduate courses and organized the Pacific Rim Conference on children's literature.

According to scholar and collaborator Judith Saltman, her work had "a profound impact" on the teaching, criticism, publishing and librarianship of children's books in Canada.

[6] Her writings about international fiction in English include Thursday's Child, which won the American Library Association's Ralph R. Shaw Award, and Worlds Within, a study of fantasy literature.