Kenneth Vincent John Wheeler, CC, (born 14 January 1930, Toronto, Canada) is a Canadian composer and trumpet and flugelhorn player, based in the U.K. since the 1950s.

Most of his output is rooted in jazz, but he has also been active in free improvisation and has occasionally contributed to rock music recordings. Highly respected among his peers for his beautiful tone and extensive range on the trumpet and flugelhorn, Wheeler has written over one hundred compositions and is a skilled arranger for small groups and larger ensembles. His compositions blend lyrical melodies with a distinctive and ever changing harmonic palette.

He has recorded some twenty albums as a leader, and has recorded or performed with Paul Gonsalves, Dave Holland, John Taylor and Norma Winstone (as Azimuth), Anthony Braxton, Lee Konitz, Keith Jarrett, Theo Jörgensmann Quartet, David Sylvian, Bill Bruford, Steve Coleman, Spiritualized and the Spontaneous Music Ensemble, among others.