| Personal information | |||
|---|---|---|---|
| Date of birth | 2 May 1970 | ||
| Place of birth | Solothurn, Switzerland | ||
| Height | 1.89 m (6 ft 2 in) | ||
| Position(s) | Defender | ||
| Youth career | |||
| –1983 | FC Bellach | ||
| 1983– | FC Solothurn | ||
| FC Grenchen | |||
| –1988 | FC Bellach | ||
| Senior career* | |||
| Years | Team | Apps | (Gls) |
| 1988–1990 | FC Grenchen | 49 | (4) |
| 1990–1992 | FC Lugano | 42 | (1) |
| 1992–1996 | Basel | 110 | (10) |
| 1996–1998 | 1860 Munich | 53 | (3) |
| 1998–2000 | Tennis Borussia Berlin | 55 | (5) |
| 2000–2002 | St. Gallen | 18 | (2) |
| 2002–2004 | Aarau | 23 | (2) |
| 2004–2005 | Mainz 05 | 17 | (0) |
| 2005–2006 | Old Boys | 10 | (0) |
| Total | 344 | (22) | |
| International career | |||
| 1995–1997 | Switzerland | 10 | (0) |
| Managerial career | |||
| 2005–2008 | Basel (U18 assistant) | ||
| 2007–2008 | Concordia Basel (assistant) | ||
| 2008–2014 | Basel (assistant) | ||
| 2015 | Biel-Bienne (assistant) | ||
| 2015–2018 | Basel (assistant) | ||
| 2018 | Aarau (assistant) | ||
| 2019 | Old Boys | ||
| 2019–2021 | FC Naters | ||
| 2021 | FC Sion | ||
| 2022 | FC Basel | ||
| *Club domestic league appearances and goals | |||
Marco Walker (born 2 May 1970) is a Swiss football manager and a former international who played as a defender during the 1980s, 1990s and 2000s.