Roy Miller may refer to:
Doc Miller (Roy Oscar Miller, 1883–1938), baseball player Roy Andrew Miller (1924–2014), American linguist Roy Miller (footballer) (born 1984), Costa Rican footballer Roy Miller (cricketer) (1924–2014), Jamaican cricketer Roy Miller (American football) (born 1987), American football defensive tackle Roy Miller (academic) (1935–2021), British academic Henry Pomeroy Miller (1884–1946), known as Roy, "boy mayor" of Corpus Christi, Texas (1913–1919) Roy Miller, a character in the 2010 action comedy film Knight and Day Roy Miller, a character in the 2010 action thriller film Green Zone
See also Roy Millar, Irish FA's director of coaching