Harry Thomas may refer to:

• Harry Thomas (rugby league), New Zealand rugby league footballer of the 1920s
• Harry Thomas (footballer) (1901–?), Welsh football striker
• Henry Thomas (boxer) (1888–1963), British bantamweight boxer

• Harry Thomas Jr. (born 1960), politician in Washington, D.C.
• Harry Thomas Sr. (1922–1999), politician in Washington, D.C.
• Harry K. Thomas Jr. (born 1956), American diplomat

• Harry Thomas (1909–1996) Hollywood make-up man who worked on films directed by Ed Wood, Roger Corman and many others
• Harry Thomas (bishop) (1897–1955), Bishop of Taunton

• Harold Thomas (disambiguation)
• Henry Thomas (disambiguation)
• All pages with titles containing Harry Thomas