Ian Miller may refer to:
- Ian Miller (Australian footballer) (born 1949), Australian rules footballer
- Ian Miller (footballer, born 1983), English footballer
- Ian Miller (footballer, born 1955), Scottish footballer
- Ian Miller (illustrator) (born 1946), British fantasy illustrator
- Ian Miller, former member of the band Virgin Black
- Ian Miller (basketball) (born 1991), American basketball player
- Ian Miller (baseball) (born 1992), baseball player
- Ian Miller, a character in the film My Big Fat Greek Wedding
- Ian Miller, co-founder of Miller's Retail