|Date of birth||28 July 1906|
|Date of death||1 February 1968(aged 61)|
|1929–1931||FC La Chaux-de-Fonds|
|1931–1933||Urania Genève Sport|
|* Senior club appearances and goals counted for the domestic league only.
Willy Jäggi (28 July 1906 – 1 February 1968) was a Swiss footballer who played for Switzerland in the 1934 FIFA World Cup. He also played for FC Solothurn, Servette FC, FC La Chaux-de-Fonds, Urania Genève Sport, FC Lausanne-Sport, and FC Biel-Bienne.