James Block (born 30 January 1968) is a British canoe sprinter who competed in the early 1990s.
He lived on Gilbert Road in Cambridge, and gained A-levels in 1986 in Physics, and Further Maths. He attended the University of Nottingham.
He later lived in West Bridgford. In 1992 he worked for British Rail in research.
At the 1992 Summer Olympics in Barcelona, he was eliminated in the semifinals of the K-2 1000 m event.