The Gandalf Grand Master Award for life achievement in fantasy writing was awarded annually by the World Science Fiction Society from 1974 to 1980. Recipients were selected by the vote of society members.

The award was named after Gandalf the wizard, who appears in the works of J. R. R. Tolkien; Tolkien was the inaugural recipient of the award.

Recipients

• 1974 - J. R. R. Tolkien
• 1975 - Fritz Leiber
• 1976 - L. Sprague de Camp
• 1977 - Andre Norton
• 1978 - Poul Anderson
• 1979 - Ursula K. Le Guin
• 1980 - Ray Bradbury

In 1978 and 1979, a Gandalf Award for Book-Length Fantasy was also awarded.

• 1978 - The Silmarillion, J. R. R. Tolkien, edited by Christopher Tolkien
• 1979 - The White Dragon, Anne McCaffrey