The 2018–19 Premiership Rugby Cup was the 47th season of England's national rugby union cup competition and the first under the new Premiership Rugby Cup format following the disbanding of the Anglo-Welsh Cup at the end of the 2017–18 season due to the withdrawal of the Welsh Pro14 regions. Although there are no stipulations on player selection, the cup was seen by many clubs as a development competition, and games took place during the Autumn International window and during the Six Nations.