Erik ten Hag (Dutch: [tɛn ˈɦɑx] ten HAKH; born 2 February 1970) is a Dutch professional football manager and former player who was most recently the head coach of Bundesliga club Bayer Leverkusen.

Ten Hag played as a centre-back and began his career with Eredivisie club Twente. He joined De Graafschap in 1990, and won the Eerste Divisie in his first season. He rejoined Twente in 1992 and transferred to RKC Waalwijk two years later, where he remained for one season before signing with Utrecht in 1995. Ten Hag returned to Twente for a third time in 1996, where he won KNVB Cup in 2001. He retired from playing in 2002 at age 32.

Ten Hag began his managerial career in 2012 at Go Ahead Eagles, where he led the club to promotion to the Eredivisie in his debut season. He then joined Bayern Munich II in 2013, winning promotion to the Regionalliga Bayern in 2014. He returned to the Netherlands in 2015 as head coach and sporting director at Utrecht. He joined Ajax in 2018, where he won three Eredivisie titles, two KNVB Cups, and led the team to the semi-finals of the 2018–19 UEFA Champions League. In 2022, he was appointed manager of Manchester United. During his tenure at the club, United won the EFL Cup and FA Cup in successive seasons, but failed to make significant progress in the Premier League or European competitions. He was dismissed in 2024 following a string of poor results. He was announced as Bayer Leverkusen's new head coach, ahead of the 2025–26 season. He was sacked in September 2025 after having coached just three matches.

Erik ten Hag was born on 2 February 1970 in Haaksbergen, Overijssel in the Netherlands. Ten Hag played primarily as a centre-back for Twente, De Graafschap, RKC Waalwijk and Utrecht. He had three stints with Twente, and he captained the side to win the KNVB Cup in the 2000–01 season. He also won the Eerste Divisie with De Graafschap in the 1990–91 season, ten years before winning the cup with Twente. He retired from active playing in 2002 at the age of 32 while playing for Twente, after the end of the 2001–02 Eredivisie season.

Following his retirement, Ten Hag took on a coaching role at Twente's academy, initially overseeing the U17 team, followed by the U19 team until 2006, when he was promoted to assistant manager. He worked under Fred Rutten and later Steve McClaren until 2009. He then joined PSV, working as an assistant under Rutten once more.

It was announced on 18 April 2012 that Ten Hag would take over as manager of Eerste Divisie club Go Ahead Eagles on a two-year contract, starting from the 2012–13 season. During his only season at Go Ahead Eagles, he led the team to its first promotion in 17 years.

Ten Hag was appointed as Bayern Munich II manager on 27 June 2013 with a two-year contract. He served until 2015, when he was replaced by Heiko Vogel. During his time as manager, Ten Hag led his team to the Regionalliga Bayern title.

Eredivisie club Utrecht announced on 22 April 2015 that Ten Hag would become the club's head coach and sporting director on a two-year contract starting from 1 July. In his first season, he led the club to the 2016 KNVB Cup final, losing 2–1 to Giovanni van Bronckhorst's Feyenoord; a league finish of fifth put them in the playoffs for a UEFA Europa League place, losing 3–1 on aggregate to Heracles Almelo. The following season, a fourth-place finish put Utrecht in the playoffs again, where they secured a European place on penalties against AZ. Utrecht were sixth when Ten Hag left at the mid-point of the 2017–18 Eredivisie season.