Phillip Anthony Dumatrait (born July 12, 1981) is an American former professional baseball pitcher.

Dumatrait spent a majority of his minor league career in the Reds organization with Double-A Chattanooga Lookouts and Triple-A Louisville Bats.

On September 19, 2009, the Pirates announced their intention to option Dumatrait to their Triple-A affiliate, the Indianapolis Indians.

On December 19, 2009, Dumatrait signed a minor league contract with the Detroit Tigers that included an invitation to spring training.

On November 17, 2010, Dumatrait signed a minor league deal with an invitation to spring training with the Minnesota Twins.