| Gertjan Martens | |
| Birth Date: | 20 September 1988 |
| Birth Place: | Ursel, Belgium |
| Position: | Centre back |
| Currentclub: | HSV Hoek |
| Clubnumber: | 21 |
| Youthyears1: | 1993–1994 |
| Youthclubs1: | Sparta Ursel[1] |
| Youthyears2: | 1994–2005 |
| Youthclubs2: | Club Brugge |
| Youthyears3: | 2005–2009 |
| Youthclubs3: | Gent |
| Years1: | 2009–2010 |
| Clubs1: | Ronse |
| Caps1: | 34 |
| Goals1: | 6 |
| Years2: | 2010–2012 |
| Clubs2: | KV Oostende |
| Caps2: | 59 |
| Goals2: | 6 |
| Years3: | 2012–2013 |
| Clubs3: | Waasland-Beveren |
| Caps3: | 0 |
| Goals3: | 0 |
| Years4: | 2012–2013 |
| Clubs4: | → KV Oostende (loan) |
| Caps4: | 27 |
| Goals4: | 1 |
| Years5: | 2013–2015 |
| Clubs5: | KV Oostende |
| Caps5: | 8 |
| Goals5: | 0 |
| Years6: | 2014–2015 |
| Clubs6: | → Royal Antwerp (loan) |
| Caps6: | 28 |
| Goals6: | 0 |
| Years7: | 2015–2018 |
| Clubs7: | Union SG |
| Caps7: | 85 |
| Goals7: | 8 |
| Years8: | 2018–2019 |
| Clubs8: | Tubize |
| Caps8: | 14 |
| Goals8: | 0 |
| Years9: | 2019–2020 |
| Clubs9: | RWD Molenbeek |
| Caps9: | 10 |
| Goals9: | 0 |
| Years10: | 2020 |
| Clubs10: | Eendracht Aalst |
| Caps10: | 4 |
| Goals10: | 0 |
| Years11: | 2020–2022 |
| Clubs11: | Knokke |
| Caps11: | 10 |
| Goals11: | 0 |
| Years12: | 2022– |
| Clubs12: | HSV Hoek |
| Caps12: | 62 |
| Goals12: | 7 |
| Club-Update: | 13:27, 16 March 2024 (UTC) |
Gertjan Martens (born 20 September 1988) is a Belgian footballer who plays for HSV Hoek in the Dutch Derde Divisie as a centre back.
On 1 February 2020 it was confirmed, that Martens had joined S.C. Eendracht Aalst in the Belgian Second Amateur Division.[2]