William de Oliveira Pottker (born 22 February 1993) is a Brazilian professional footballer who plays as a forward for club Atlético Goianiense.

On 7 September 2011 he made his first team – and Série A – debut, coming on as a second-half substitute in a 1–1 away draw against Atlético Goianiense.

[1] Pottker was subsequently loaned to Gandzasar,[2] Ventforet Kofu, Red Bull Brasil[3] and Linense,[4] scoring five goals with the latter in 2015 Campeonato Paulista.

[5] After only appearing for Braga's B-team in Segunda Liga, Pottker returned to Brazil and played for Linense, on loan, until the end of 2016 Campeonato Paulista.

On 16 February 2017, Pottker was sold to Internacional, but remained at Ponte until the end of the year's Paulistão.