Joshua Filler (born 2 October 1997) is a German pool player from Bönen, Germany.
In 2018 Filler defeated Carlo Biado 13-10 to win the 2018 WPA World Nine-ball Championship.
The same year he was the youngest player to win the China Open and 2018 10-ball European Pool Championships.
Filler became WPA and Euro Tour world number 1 in 2019, and later reached the final of the 2019 WPA World Ten-ball Championship before losing 10-7 to Ko Ping-chung.
Filler has also represented Europe in the Mosconi Cup, winning the MVP award at the 2017 Mosconi Cup.