Marius Wolf (born 27 May 1995) is a German professional footballer who plays as a midfielder for 1. FC Köln on loan from Borussia Dortmund.
Wolf is a youth exponent from 1860 Munich. He made his 2. Bundesliga debut on 26 October 2014 against Braunschweig in a 1–2 home defeat, being substituted for Valdet Rama in the 72nd minute. On 21 February 2015 Wolf scored his first professional goal in a 2–1 home win against St. Pauli, when he brought his team to a 2–0 lead assisted by Daniel Adlung. He moved to Hannover 96 on 8 January 2016.
He was loaned by Hannover to Eintracht Frankfurt in January 2017. His loan contract was extended for the 2017–18 Bundesliga season. In January 2018, Eintracht Frankfurt exercised the option to sign him permanently and he signed a contract until June 2020.
On 28 May 2018, Wolf joined Borussia Dortmund on a five-year deal for a reported fee of €5 million.
On 2 September 2019, Wolf was loaned out to Hertha BSC for the 2019–20 season.