John Ryder
John Ryder may refer to:
- John Ryder (bishop), Archbishop of Tuam, Ireland
- John Ryder (priest), Irish Anglican priest
- John Ryder (Canadian politician), Canadian politician from Nova Scotia
- John Ryder (state senator), American state legislator in Ohio and Iowa
- John Ryder (state representative), American state legislator in Iowa
- John Ryder, 5th Earl of Harrowby, British peer and Conservative Member of Parliament
- John Ryder (actor), English actor
- John Ryder (scholar), professor and president of Khazar University in Baku, Azerbaijan
- John Ryder (boxer), British boxer
- John A. Ryder, American zoologist
- John Ryder, villain from the 1986 film The Hitcher and its 2007 remake