John Tinline Harkness (6 April 1867 – 15 December 1960) was a New Zealand cricketer.
[2][3] He played club cricket in Nelson[4] and by 1891 had moved to live in the Grafton area of Auckland.
[5] During the following season Harkness made his representative debut for Auckland, playing his only first-class match for the side against Otago in December 1892.
He scored a total of four runs on debut and did not take a wicket in the match.
[6][7] Professionally Harkness qualified as an accountant and by the end of the 1890s was working in Dunedin in Otago.