Reyner is a surname, and has also been used as a given name. Notable people with the name include:
- Reyner Banham (1922–1988), English architectural critic
- Clement Reyner (1589–1651), English Benedictine monk
- Edward Reyner (1600–c.1668), English nonconforming clergyman
- Harry Reyner (1889–1978), American politician, mayor of Newport News, Virginia