Thomas Caldwell Knowles (6 May 1908 – 12 September 1985) was an English international rugby union player.
[1] Born in West Bromwich, Knowles learned his rugby at Ampleforth College, starting out as a fullback.
[2] Knowles developed into a stand-off with his club Birkenhead Park and could also play centre three three-quarter.
For his solitary England cap, a 1931 Five Nations against Scotland at Murrayfield, Knowles played stand-off.
[3] He twice toured overseas with the British Lions, visiting New Zealand and Australia in 1930, then Argentina in 1936.