Delos Palmer Jr. (1890–1960) was an American painter and illustrator whose work ranged from magazine interiors and pulp covers to murals and portraits.

He studied at the Art Students League in New York from 1911 to 1915. Early in his career he worked as an illustrator, and in the 1930s he became a regular contributor to the pulp market. Palmer’s credits include Western Trails, Clues, Dime Mystery, Inside Detective and other detective and Western magazines. He also painted commercial book covers and later portrait work, reflecting a career beyond pulp fiction.