COLOGNE, GERMANY - MAY 10: Rene Wagner, Caretaker Head Coach of 1. FC Koln, looks on prior to the Bundesliga match between 1. FC Köln and 1. FC Heidenheim 1846 at RheinEnergieStadion on May 10, 2026 in Cologne, Germany. (Photo by Lars Baron/Getty Images)

Cologne have appointed former interim head coach René Wagner on a permanent deal that runs until 2028.