|Full name||Mathieu Assou-Ekotto|
|Date of birth||8 April 1978|
|Place of birth||Sainte-Catherine-lès-Arras, France|
|Height||1.77 m (5 ft 10 in)|
|2010–2012||Boussu Dour Borinage||56||(3)|
|* Senior club appearances and goals counted for the domestic league only.
Born in Sainte-Catherine-lès-Arras, Assou-Ekotto spent nine years with local RC Lens all levels comprised but played mainly for the reserves during his spell, only appearing in three Ligue 1 games with the club. Released in the 1998 summer, he moved to Belgium and joined R.E. Mouscron.
In the 2000 off-season, Assou-Ekotto returned to France and played for three teams in three-and-a-half seasons, competing in the second, third and fourth divisions (in the latter two levels with Valenciennes FC). On 19 January 2004 he moved back to Belgium and its Pro League, signing with R.A.A. Louviéroise.
Assou-Ekotto contributed with 11 matches in the first half of the 2005–06 campaign to Standard Liége's runner-up position, before joining Willem II from the Netherlands in the following winter transfer window. In yet another January move, he signed for former club Mouscron – first joining on loan – going on to play with the Hainaut side until they folded in December 2009.
Assou-Ekotto's younger brother, Benoît, was also a footballer. A defender, he too started his career at Lens, going on to spend several years in the Premier League with Tottenham Hotspur, and represented their ancestral Cameroon at international level.
- Assou-Ekotto définitivement à Mouscron (Assou-Ekotto permanently with Mouscron); Foot Goal, 15 June 2007 (in French)
- "Assou-Ekotto retourne à ... Boussu-Dour" [Assou-Ekotto returns to ... Boussu-Dour] (in French). Walfoot. 8 February 2012. Retrieved 27 April 2016.
- Belgique: Mouscron dit adieu au championnat (Belgique: Mouscron says goodbye to league); Sports.fr, 28 December 2009 (in French)