| Markus Croonen | |
| Fullname: | Markus Croonen |
| Birth Date: | 19 March 1964 |
| Position: | Goalkeeper |
| Youthyears1: | –1978 |
| Youthclubs1: | MSV Duisburg |
| Youthyears2: | 1978–1983 |
| Youthclubs2: | VfL Bochum |
| Years1: | 1983–1986 |
| Clubs1: | VfL Bochum II |
| Years2: | 1984–1986 |
| Clubs2: | VfL Bochum |
| Caps2: | 4 |
| Goals2: | 0 |
| Years3: | 1986–1987 |
| Clubs3: | SC Preußen Münster |
| Years4: | 1987–1989 |
| Clubs4: | SC Hassel |
| Years5: | 1989–1992 |
| Clubs5: | SpVgg Bad Homburg |
| Years6: | 1992–1993 |
| Clubs6: | FSV Frankfurt |
| Years7: | 1993–1994 |
| Clubs7: | SV Wiesbaden |
| Years8: | 1994–1996 |
| Clubs8: | SG Egelsbach |
Markus Croonen is a retired German football goalkeeper.[1] [2]