|1940 Toronto Argonauts season|
|Head Coach||Lew Hayman|
|Home Field||Varsity Stadium|
|Playoff Finish||Lost IRFU Final|
|Previous season||Next season|
The 1940 Toronto Argonauts season was the 54th season for the team since the franchise's inception in 1873. The team finished in second place in the Interprovincial Rugby Football Union with a 4–2–0 record and qualified for the playoffs, but lost the two-game total-points IRFU Final series to the Ottawa Rough Riders.
|Ottawa Rough Riders||6||5||1||0||116||40||10|
|Montreal Football Club||6||1||5||0||39||66||2|
|1||Oct 5||Montreal Football Club||W 9–8||1–0–0|
|2||Oct 12||Hamilton Tigers||W 17–5||2–0–0|
|3||Oct 19||Ottawa Rough Riders||L 41–6||2–1–0|
|4||Oct 26||Ottawa Rough Riders||W 11–9||3–1–0|
|5||Nov 2||Hamilton Tigers||L 5–0||3–2–0|
|6||Nov 11||Montreal Football Club||W 15–11||4–2–0|
|IRFU Final Game 1||Nov 16||@ Ottawa Rough Riders||Lansdowne Park||L 12–1|
|IRFU Final Game 2||Nov 23||Ottawa Rough Riders||Varsity Stadium||L 8–1|
- "All-Time Coaching". Toronto Argonauts. Archived from the original on 22 April 2011. http://web.archive.org/web/20110422084043/http://argonauts.ca/page/all-time-coaching. Retrieved 2011-05-07.
- "Toronto Argonauts Stadium History". Toronto Argonauts. Archived from the original on 22 April 2011. http://web.archive.org/web/20110422083852/http://argonauts.ca/page/stadium-history. Retrieved 2011-05-07.
- "1940 Regular Season Standings". Canadian Football League. http://cfl.ca/standings/1940/reg. Retrieved 2012-05-09.
- "1940". cflapedia.com. http://cflapedia.com/Years/1940details.html. Retrieved 2012-05-09.