Michael Arthur "Kelly" Seymour (5 June 1936 – 17 February 2019) was a South African cricketer who played in seven Test matches between 1963 and 1970.

[1][2] A right-arm off-break bowler and lower-order batsman, Seymour made his first-class debut for Western Province against South African Universities in 1960–61.

[8] Seymour played no first-class cricket between December 1964 and November 1968, when he returned to play for Western Province in the "B" Section of the Currie Cup, taking 21 wickets at 15.95 in the season and forming a potent spin partnership with Grahame Chevalier and taking Western Province to victory in the "B" Section.

He took 1 for 28 and 1 for 40 and South Africa won easily, but he was dropped from the Test team in favour of John Traicos, and played only one further first-class match before retiring at the end of the season.

[9] He made his only first-class 50 in the match against South Australia in 1963–64 when, coming in with the score at 194 for 8, he hit 62 in a partnership of 108 in 75 minutes with Denis Lindsay.