| 1912 Toronto Argonauts season | |
|---|---|
| Head coach | Jack Newton[1] |
| Home field | Rosedale Field[2] |
| Results | |
| Record | 5–1 |
| Division place | 1st, IRFU |
| Playoff finish | Lost Grey Cup |
The 1912 Toronto Argonauts season was the 29th season for the team since the franchise's inception in 1873. The team finished in first place in the Interprovincial Rugby Football Union with a 5–1 record and qualified for the playoffs. After defeating the Toronto Varsity Blues in the Eastern Final, the Argonauts lost the 4th Grey Cup to the Hamilton Alerts.