John Ryder may refer to: John Ryder (bishop) (1697–1775), Archbishop of Tuam, Ireland John Ryder (priest) (died 1791), Irish Anglican priest John Ryder (politician) (1805–1872), Canadian politician from Nova Scotia John Ryder, 5th Earl of Harrowby (1864–1956), British peer and Conservative Member of Parliament John Ryder (actor) (1814–1885), English actor John Ryder (scholar) (born 1951), professor and president of Khazar University in Baku, Azerbaijan John Ryder (boxer) (born 1988), British boxer John A. Ryder (1852–1895), American zoologist John Ryder, villain from the 1986 film The Hitcher and its 2007 remake