Bob Kingsley's Country Top 40 with Fitz (sometimes abbreviated as CT40) is an American country music radio countdown show created by former American Country Countdown host Bob Kingsley, who hosted the show from its January 2006 debut until shortly before his death in 2019. Currently hosted by Fitz, the program is distributed by Skyview Networks and produced as a joint venture between Hubbard Broadcasting and KCCS Productions, the holding company operated by Kingsley's widow. It uses the Mediabase Country Singles chart as its source.