| Team: | Toronto Argonauts |
| Year: | 1900 |
| Record: | 4–2 |
| Division Place: | 1st, ORFU senior series |
| Coach: | Ralph Ripley |
| Stadium: | Rosedale Field[1] |
| Playoffs: | Lost League Tie-Break |
| Shortnavlink: | Argonauts seasons |
The 1900 Toronto Argonauts season was the club's 15th season of organized league competition since its inception in 1873. The team finished in a first place tie with the Ottawa Rough Riders in the senior series of the Ontario Rugby Football Union with four wins and two losses, but failed to win the league championship after losing to the Riders in the resulting tie-break game in Toronto.
| Ottawa Rough Riders | 6 | 4 | 2 | 0 | 89 | 75 | 8 | |
| Toronto Argonauts | 6 | 4 | 2 | 0 | 82 | 42 | 8 | |
| 6 | 3 | 3 | 0 | 45 | 93 | 6 | ||
| 6 | 1 | 5 | 0 | 12 | 68 | 2 |
| Game | Date | Opponent | Results | Venue | ||
|---|---|---|---|---|---|---|
| Score | Record | |||||
| 1 | Sept 29 | vs. Hamilton Tigers | W 21–1 | 1–0 | Varsity Athletic Field | |
| 2 | Oct 6 | vs. Kingston Granites | W 14–1 | 2–0 | Rosedale Field | |
| 3 | Oct 13 | at Ottawa Rough Riders | L 8–15 | 2–1 | Varsity Oval | |
| 4 | Oct 17 | at Hamilton Tigers | W 27–12 | 3–1 | Hamilton AAA Grounds | |
| 5 | Oct 27 | at Kingston Granites | L 7–9 | 3–2 | Kingston AAA Grounds | |
| 6 | Nov 3 | vs. Ottawa Rough Riders | W 5–4 | 4–2 | Rosedale Field |