William Holder (disambiguation)

William Holder (1616–1698) was an English clergyman.

William Holder may also refer to:
 * William Holder (rugby) (fl. 1907–1941), known as Billy, English rugby union and rugby league footballer
 * William Dunbar Holder (1824–1900), Confederate politician
 * Will Holder (designer) (born 1969), British designer and artist
 * Will Holder (American football) (born 1975), American football player
 * Will Holder (rugby union) (born 1991), American rugby sevens player