John Edward Barrett, MBE (born 17 April 1931) is a former tennis player, television commentator and author.

Educated at University College School in Hampstead, he was a prominent British junior tennis player and won the National Schoolboy title in 1948.

He was twice the Royal Air Force tennis champion during his period of National Service which he completed before going up to St. John's College, Cambridge (1951–1954), where he gained an honours degree in history.

He went on to compete at Wimbledon for eighteen years from 1951, reaching the third round of the singles on four occasions and the quarter-finals of the mixed doubles three times.

Three years later he established and ran the LTA Training Squad, known as "The Barrett Boys" which set new standards of fitness in British tennis between 1965 and 1968.

In June 2014 an updated fourth edition appeared to include the historic events of 2013 when Andy Murray became the first British men's champion for 77 years.

Barrett's voice was heard on the BBC broadcast of the epic fourth set tiebreak between Borg and McEnroe in the 1980 final (this has often been shown again on TV).

For fourteen years (1997–2011) he served as President of The Dan Maskell Trust, a charitable organisation established in 1997 to help people with disabilities to play tennis.

A member of the International Lawn Tennis Club of Great Britain since 1953, he served as chairman from 1983 to 1994, as president from 2004 to 2008 and is currently a vice-president.