Paul Frank Mildren (born 3 May 1984 in Adelaide, South Australia) is an Australian former professional baseball pitcher.

[3][4] In 2005, he had a stellar year, pitching in the 2005 Baseball World Cup in the Netherlands for the Australia national baseball team, and was awarded the Florida State League Mid-Season All-Star on 18 June 2005, while pitching for the High-A Jupiter Hammerheads.

[5] In 2006, Mildren continued his move up the Florida Marlins affiliate system to the Double-A Carolina Mudcats, while also pitching for Australia again in the 2006 World Baseball Classic.

[7][8] This led to Mildren being assigned to the Florida Marlins 40-man roster in 2007, and being promoted again to the Pacific Coast League Triple-A Albuquerque Isotopes at the beginning of the year.

[9] He became a free agent at the end of the 2008 season and signed a minor league contract with the Pittsburgh Pirates in January 2009.