Diambars was founded in 2003 by former footballer Patrick Vieira and other players. Diambars started at the regional championships, after being the best in regional divisions, Diambars elevated to a professional status in 2009. Diambars came up to the national divisions, then to National 1, Diambars promoted itself to Ligue 2 and in 2011 promoted to Ligue 1for the first time where they remain into the present day. Their first season was placed in Group A and finished first with 26 points and 8 wins, the goal totals of 18 was shared with Ouakam, the highest. In the final phase, Diambars was placed second behind Casa Sports. In their second season in Ligue 1, they achieved their only championship title for 2013, Diambars finished with 52 points and had 14 wins and scored the most goals numbering 42. In 2014, they were 9th, Djambars was 4th in the 2015–16 season with 38 points and third in goal scoring numbering 30. Diambars won their only League Cup title for 2016. Diambars made their 6th Ligue 1 appearance in October 2016, Diambars had a rough start for the 2016-17 season starting 13th in the first round, but slowly headed to the top positions, 4th in the 4th round, then 2nd at the 10th round and held it for two weeks, their positions later dropped to 6th at the 17th round and regained it and finished at a slightly better position of 3rd place, behind the newcomer Génération Foot and well known Guédiawaye but a position ahead of the nation's greatest club Diaraf. Diambars had 40 points which was a point more than Djaraf and 10 wins and draws. Diambars' best players of the club especially in its early years included Pape Souaré, Idrissa Gueye, Kara Mbodj, Saliou Ciss, Omar Wade, Badou, Vieux Sané and Serigne Kara. Serigné Kara later signed a deal with Tromsø FC on 17 February 2010 and became the first Senegalese to play both in Tromsø and a team based north of the Arctic Circle. Salou Ciss later signed and played with that club and was the second Senegalese to play with a Tromsø based club.
Its team logo are crimson and black, the footballer is coloured black and its rim edges are in crimson. The letters "Di", "mb", "rs" is coloured black while the two as are in crimson. Its home uniform color has a red or crimson t-shirt and socks with white rims on top of the sleeves and black shorts with a white rim. Its away uniform are all in white with rims on top of the t-shirt, two around the collar and another two on its sleeves and on its shorts. Its uniform colors up to around 2014 were a red t-shirt and shorts with blue shorts for home matches and a blue t-shirt and socks with white shorts for away or alternate matches.