Rubuta ci gaba don wannan sakin layi - A ranar 19 ga Agusta 2020, an sanar da Koeman a matsayin sabon kocin Barcelona, a kan kwangilar shekara biyu har zuwa 30 ga Yuni 2022. Ya karɓi ragamar bayan Quique Setién an sallame shi daga mukamin bayan mummunar shan kashi 8 zuwa 2 a hannun Bayern Munich a wasan kusa da na karshe na gasar zakarun Turai ta 2019-2020. A wasan sa na farko na gasa, Barcelona ta doke Villarreal 4 zuwa 0 a Camp Nou a La Liga
Ka yi haƙuri. A ranar 17 ga Oktoba, Koeman ya sha wahala asararsa ta farko a matsayin kocin Barcelona bayan shan kashi 1-0 a waje da Getafe. A ranar 24 ga Oktoba, ya rasa "El Clásico" na farko na kakar wasa zuwa abokan hamayyarsa Real Madrid ta hanyar 3<unk>1 scoreline. Wannan rashin nasara ya biyo bayan wasan 1<unk>1 da Alavés, wanda ya haifar da Barcelona ta daidaita da mafi munin ƙididdigar su bayan wasanni shida na farko a La Liga (maki 8, kamar yadda kaɗan kamar a cikin 2002-03 kakar).