Kelly Jefferson (born March 4, 1970 in Regina, Saskatchewan) - is a Canadian jazz saxophonist, he has recorded and performed with numerous jazz musicians and bands.
He has performed with the Montreal Symphony Orchestra, Ottawa's National Arts Centre Orchestra, the Vanguard Jazz Orchestra, The Chris Tarry Group, and many other jazz artists. He toured the United States and Europe as tenor saxophonist with Maynard Ferguson and Big Bop Nouveau. He leads the Kelly Jefferson trio and co-leads the Jefferson Grant Quintet with trombonist Kelsley Grant.