David Ronald Horler (born 10 September 1943) is an English jazz trombonist.
Following his graduation he played with the BBC Radio Orchestra (1967–70), then played freelance in London orchestras, including those conducted by Leonard Bernstein, Quincy Jones, and Michel Legrand.
[2] He moved to Cologne in 1980, playing in the WDR Big Band, also composing and arranging for the group.
As a sideman, he has played with Maynard Ferguson, Stan Getz, Tony Bennett, Bob Brookmeyer, Mike Gibbs, Clark Terry, Kenny Wheeler, Carmen McRae, and Jim McNeely.
[3] Of his five children, one of his four daughters is Natalie Horler, the lead singer in the Eurodance band Cascada.