| Michael Diethelm | |
| Fullname: | Michael Diethelm |
| Birth Date: | 24 January 1985 |
| Birth Place: | Switzerland |
| Height: | 180 cm |
| Currentclub: | FC Wohlen |
| Clubnumber: | 24 |
| Position: | Defender |
| Youthyears1: | 1991–2003 |
| Youthclubs1: | FC Luzern |
| Years1: | 2003–2008 |
| Clubs1: | FC Luzern |
| Caps1: | 111 |
| Goals1: | 3 |
| Years2: | 2008–2011 |
| Clubs2: | FC Wohlen |
| Caps2: | 48 |
| Goals2: | 5 |
| Years3: | 2011– |
| Clubs3: | SC Cham |
| Caps3: | 21 |
| Goals3: | 2 |
| Nationalteam1: | Switzerland U-17 |
| Pcupdate: | 21 April 2012, 24:00 (UTC) |
Michael Diethelm (born 24 January 1985) is a footballer from Switzerland. He currently plays as a defender for SC Cham in the Swiss 1. Liga.
He previously played for FC Luzern in the Swiss Super League and for FC Wohlen.
Diethelm is a former youth international and was in the Swiss U-17 squad that won the 2002 U-17 European Championships.[1]