Terence Ryan (born 27 April 1942) is a former professional tennis player from South Africa.

Ryan notably pushed Arthur Ashe to five sets when they met in second round of 1969 Wimbledon Championships.

He won the first two sets, before the fifth seeded American came back to win and ultimately make the semi-finals.

His best singles results on the Grand Prix circuit were quarter-final appearances at Eastbourne in 1971 and Newport, Wales in 1973.

[4] He settled in Puerto Rico and worked as a head tennis coach at resorts in Dorado.