| Ermanno Aebi | |
| Birth Date: | 1892 1, df=yes |
| Birth Place: | Milan, Italy |
| Death Place: | Milan, Italy |
| Position: | Midfielder |
| Years1: | 1910–1922 |
| Clubs1: | Internazionale |
| Caps1: | 142 |
| Goals1: | 106 |
| Nationalyears1: | 1920 |
| Nationalteam1: | Italy |
| Nationalcaps1: | 2 |
| Nationalgoals1: | 3 |
Ermanno Aebi (pronounced as /it/; 13 January 1892 – 22 November 1976) was an Italian-Swiss footballer who played as a midfielder.
Born in Milan to a Swiss father and an Italian mother, at the age of 16 Aebi was contracted by Internazionale. He contributed to the team's first-ever scudetto (1910), as well as to the club's second league title, ten years later.
Aebi was the first oriundo to play for the Italy national team, on 18 January 1920, against France and scored a hat-trick in Italy's 9–4 win.
Aebi's son Giorgio was a player in Calcio Como. Ermanno died in 1976.