1909–10 Prima Categoria
| Season | 1909–10 |
|---|---|
| Champions | Internazionale 1st title |
| Top goalscorer | Ernest Peterly (23) |
← 1909 1910–11 → | |
The 1909-10 Prima Categoria was the thirteenth edition of the Italian Football Championship and the seventh since the rebrand to Prima Categoria. This was the first season in which the Italian Football Championship was contested in all-round-robin format, (other than the excluding the tie-break play-off that was ultimately needed). The play-off was won by Internazionale. Their play-off opponents and champions of the two previous and three subsequent seasons were Pro Vercelli. Vercelli fielded a team of 15-year-old boys to protest against the scheduling of the play-off that season. This was Inter’s first title as Italian champions.