Joshua or Josh Miller may refer to:

Musicians

• Joshua Miller, American musician with duo Nemesis also featured in Jacob and Joshua: Nemesis Rising
• Josh Miller, musician with The Pappy Johns Band

Sportsmen

• Josh Miller (field hockey) in 2013 Sultan Azlan Shah Cup
• Josh Miller (American football) (born 1970), American football punter
• Josh Miller (baseball) (born 1978), American baseball coach
• Josh Miller (cornerback) (born 1996), American gridiron football player
• Josh Miller (rugby league) (born 1983), Australian rugby league footballer

Politicians

• Joshua Miller (Rhode Island politician) (born 1954), member of the Rhode Island Senate
• Joshua Miller (Iowa politician) (1822–1886), member of the Iowa Senate
• Josh Miller (Arkansas politician) (born 1981), member of the Arkansas House of Representatives

Others

• Joshua John Miller (born 1974), American actor
• Josh Miller (education), American technology executive, director of product for the White House
• Josh Miller (filmmaker) (born 1978), or Worm Miller, American writer, director, and actor
• Joshua Miller (psychologist), psychology professor at the University of Georgia