John Bailey Hawkes (7 June 1899 – 31 March 1990) was an Australian tennis player who won the singles title at the 1926 Australasian Championships and was ranked No.

Educated at The Geelong College from 1909 to 1919, he showed enormous potential as a young sportsman, having won the Victorian School Boys U19 tennis title for 5 years in a row – described by historian Graeme Kinross Smith as the "nursery for tennis talent".

Hawkes had also been touted as a future test cricketer for Australia and was made a member of the MCC at the age of 13.

Hawkes was a three-times Davis Cup representative in 1921, 1923, 1925 and was controversially omitted from the team in the year of his Australian Open crown in 1926 and successful overseas tour of 1928.

Jack Hawkes retired to Ocean Grove (where he had holidayed as a child at the family's beachside home "Imbool"), and later to Barwon Heads before his death in Geelong, at the age of 90 after a short illness, on 31 March 1990.