The 35-year-old former Dortmund, Real Madrid and Liverpool midfielder has signed a three-year contract to take the reins a day after Terzic’s request to be released from his contract was accepted.
Sahin, who had been Terzic’s assistant, told the club’s official website: “It is a great honor for me to be the coach of Borussia Dortmund.
“I would like to thank all members of the club’s senior management for the trust they have placed in me and I am looking forward to taking up my new position at BVB.
“From day one we will do everything we can and work with energy and passion to make this club as successful as possible.”
Sahin made 274 competitive appearances for the club, many of them under Jurgen Klopp, winning the Bundesliga title in 2011 and the DFB Cup in 2017, as well as a three-year stay in Madrid and a loan spell with Liverpool.
He finished his playing career in Türkiye with Antalyaspor, which he later managed.
The former Turkey international returned to Dortmund as one of Terzic’s assistants in January and will now take charge of the Champions League runners-up.
Sporting director Sebastian Kehl said: “Nuri Sahin helped us reach the UEFA Champions League final last season.
“He has the experience here as a player and assistant coach to know how BVB works and, above all, he knows how to be successful.
“With his natural authority and experience, he has a good relationship with our team and knows what we need to work on collectively. Nuri has our full trust and support.”
Sahin’s appointment came on the same day Dortmund announced that experienced defender Hummels will end his 13-year association with the club when his contract expires at the end of the month.
News of the 35-year-old’s departure came hot on the heels of Terzic’s amid reports that the pair clashed before Dortmund’s 2-0 Champions League final defeat to Real Madrid.
A statement on the club’s official X (formerly Twitter) account read: “Borussia Dortmund and Mats Hummels will part ways.
“The German defender has spent over 13 years at the club and left a significant mark by winning two Bundesliga and DFB-Pokals titles with the club, among many other achievements.
“We are grateful for the success we have had together.”
Hummels’ imminent departure follows confirmation that veteran striker Marco Reus will also leave the club this summer.
The World Cup-winning German defender, who joined Dortmund from Bayern Munich in October 2008 and returned in July 2019 after three years at Bayern, made 508 appearances for the club.
Hummels said on his official Instagram account: “In total, more than 13 years wearing black and yellow are coming to an end. He established himself as a professional, celebrated great titles together and lived an unforgettable period with BVB.
“The moments shared will last forever. And we will always be Borussia fans… THANK YOU for everything!”
Hummels has been capped 78 times by Germany but has not been included in Julian Nagelsmann’s squad for the Euro 2024 finals.