The 1907 Prima Categoria was the tenth edition of the Italian Football Championship and the fourth since the re-brand to Prima Categoria. The Italian football championship was won that year for the third time by AC Milan, retaining their title from the previous year.
Like 1905, 2 clubs from each of the 3 Northern Italian regions of Liguria, Lombardy and Piedmont took part. The winners of the 3 regional play offs contested a round robin final stage.