Ernest Peterly (1 January 1892 – 15 October 1957) was a Swiss footballer who played as a midfielder.
He spend his whole career playing with SC Brühl in Switzerland and Internazionale in Italy, whom he won the 1909–10 Italian Football Championship, being the top goal scrorer.
He also won the 1914–15 Swiss Serie A with SC Brühl, helping the club to win its first ever trophy.
Peterly was also a former Swiss international footballer, representing his country five times between 1913 and 1918.