 On 15 May 2019, Poroshenko signed the law "On provision of the functioning of the Ukrainian language as the State language"

Under Poroshenko the autocephalous Orthodox Church of Ukraine was created by the merging of the UOC-KP and the UAOC, and two members of the UOC-MP in a unification council which also elected Epiphanius I as its first primate.The 11 October 2018 announcement by Ecumenical Patriarchate that it would – among other things – grant autocephaly to a Ukrainian church is one of the reasons which created the Moscow–Constantinople schism when the Moscow Patriarchate severed full communion with the Ecumenical Patriarchate on 15 October 2018.Corruption in Ukraine is a widespread problem; although there are signs that during Poroshenko presidency it decreased (thanks to the Prozorro digital system).