Mikuni World Stadium Kitakyushu (ミクニワールドスタジアム北九州) is an association football and rugby union stadium located in Kitakyushu, Fukuoka Prefecture, Japan.

It has been called Mikuni World Stadium Kitakyushu for the naming rights.

On 16 September 2019 the Welsh national rugby team practised at this stadium in front of a full house – officially 15,300 seated, with more standing.

This was a pre-event for the Rugby World Cup 2019 held in Japan.

On 25 June 2022, Japan national rugby union team hosted a test match against Uruguay.