Dianne Kenneth Matias (born 2 February 1985) is a Filipino-American former professional tennis player.

Born in Balagtas, Philippines, Matias was six years of age when her family emigrated to the United States and she grew up in the South Bay region of Los Angeles County.

[1] She played collegiate tennis for the University of Southern California between 2003 and 2007, earning a best national ranking of 32.

In 2006, she featured in the qualifying draw for the Indian Wells Open (WTA Tour event) and was eliminated by Victoria Azarenka.

In 2008, she represented the Philippines Fed Cup team in three ties, against Syria, South Korea and Singapore.