Robert Murray Gordon (Rob) McConnell (born February 14, 1935, London, Ontario) is a Canadian jazz valve trombonist, composer, arranger, music educator and recording artist. Rob McConnell took up the slide trombone in high school, and began his performing career in the early 1950s, performing and studying with Don Thompson, Bobby Gimby, and later, with fellow Canadian Maynard Ferguson. In 1968 he formed The Boss Brass, a big band that would become his primary performing and recording unit through the 1970s and 1980s.