| Show Name: | Canada's Top 20 Countdown |
| Format: | Music chart show, talk |
| Runtime: | Approx. 2 hrs. (including commercials) |
| Creator: | A. J. Reynolds |
| Executive Producer: | Miguel Sanchaez |
| Presenter: | A. J. Reynolds (2009–2016) Julia Kilbride (2010–?) various guest hosts |
| Imaging: | MJ Cochran |
| Country: |  Canada |
| First Aired: | September 2009 |
| Last Aired: | 2016 |
| Num Episodes: | CHR: 247, Rock: 188, Country: 170 (as of June 12, 2014) |
| Home Station: | CKBE-FM |
Canada's Top 20 Countdown was a Canadian weekly syndicated radio chart program based in Halifax, Nova Scotia. The countdown began in September 2009 and is owned and produced by Positive Number Productions.
The program was available to radio stations in two formats: CHR/Hot AC branded as Pop 20, and 1980s and early 1990s pop & rock branded as The Retro 20. A rock and a country version of the show were introduced in 2010 but have since been discontinued. Each program ran two hours in duration, and they counted down the 20 biggest songs from coast to coast in their respective genres. The program was syndicated to stations throughout Canada, as well as on Air Canada flights worldwide and, until its 2014 closure, on Canadian Forces Radio.[1] A variation of the show, Canada's Top 20 Skate, has also been heard at hockey arenas throughout Canada.
The CHR/Hot AC, and the now defunct rock version, of Canada's Top 20 were hosted by A. J. Reynolds. The defunct country version was hosted by Julia Kilbride.[2] Other personalities featured in the program include Ed the Sock[3] and Floyd Blaikie.
Canada's Top 20 had interviewed over 350 Canadian musical artists in its Canadian Artist of the Week segment. The countdown maintained a minimum of 40% Canadian Content and prided itself on its commitment to up and coming Canadian artists by featuring an unsigned, independent artist on its show monthly.