| Peter Dietrich | |
| Birth Date: | 6 March 1944 |
| Birth Place: | Neu-Isenburg, Germany |
| Height: | 1.77 m |
| Position: | Midfielder |
| Youthclubs1: | SpVgg Neu-Isenburg |
| Years1: | 1963–1964 |
| Clubs1: | SpVgg Neu-Isenburg |
| Years2: | 1964–1966 |
| Clubs2: | ESV Ingolstadt |
| Years3: | 1966–1967 |
| Clubs3: | Rot-Weiss Essen |
| Caps3: | 28 |
| Goals3: | 3 |
| Years4: | 1967–1971 |
| Clubs4: | Borussia Mönchengladbach |
| Caps4: | 103 |
| Goals4: | 14 |
| Years5: | 1971–1976 |
| Clubs5: | Werder Bremen |
| Caps5: | 82 |
| Goals5: | 7 |
| Nationalyears1: | 1970 |
| Nationalteam1: | West Germany |
| Nationalcaps1: | 1 |
| Nationalgoals1: | 0 |
Peter Dietrich (born 6 March 1944 in Neu-Isenburg) is a German former footballer who played as a midfielder.
Dietrich won his lone cap[1] for West Germany straight before the 1970 FIFA World Cup, but did not add any further international match to his tally before his retirement.[2]