Amar Osim (born 18 July 1967) is a Bosnian professional football manager and former player. He is regarded as one of the most successful Bosnian football managers.

Osim was a talented player during his teens. However, he did not transfer his talent after getting called up to the Željezničar first team. Apart from Željezničar, Osim also played in France for Saint-Dié and Strasbourg. He ended his career while at Željezničar in 1997.

Osim decided to stay in football, becoming a manager. He is the most successful manager in Željezničar's history, winning five Bosnian Premier League titles, four Bosnian cups and one Bosnian Supercup in his three stints with the club. Osim also won the J.League Cup with Japanese club JEF United Chiba in 2006. He managed Qatari club Al Kharaitiyat as well, with mediocre results. In 2022, Osim briefly managed Velež Mostar.

Born and raised in Sarajevo, Osim started playing football in hometown club Željezničar. After playing for the youth team, he entered the senior squad in 1986. In 1991, he left for France where he played for lower division clubs Saint-Dié and Strasbourg. In 1996, he returned to his home country. Osim played one more season for Željezničar before retiring.

Although a talented player, with good technical skills, Amar never managed to match the success or renown of his father, Ivica Osim's playing career.

Osim's managerial career started in Željezničar's youth squad which he guided to success in domestic competitions. After Dino Đurbuzović was sacked in the spring of 2001, club officials promoted him to the place of first team manager.

He immediately led the club to two Bosnian Premier League titles in 2001 and in 2002, being runner-up in 2003.

In August 2002, Osim led Željezničar to the 2002–03 UEFA Champions League third qualifying round, where the club lost 5–0 on aggregate to English Premier League club Newcastle United. That is, so far, the club's best post-war European competition result.