The 2010 Toronto Argonauts season was the 53rd season for the team in the Canadian Football League and their 138th overall. The Argonauts improved upon their 3–15 record from 2009 and their 4–14 record from 2008 and qualified for the playoffs for the first time since 2007. After upsetting the Hamilton Tiger-Cats in the East Semi-Final, they were defeated in the East Final by the hosting Montreal Alouettes.