Riyo Mori (born December 24, 1986 in Aoi-ku, Shizuoka, Japan) is a Japanese beauty pageant titleholder and television personality who was crowned Miss Universe 2007.
As an only child, Riyo Mori began dancing at the age of 4. She has studied at Quinte Ballet School of Canada and also is a graduate from Centennial Secondary School in Belleville.
Mori was crowned Miss Universe on May 28, 2007, by the outgoing titleholder Zuleyka Rivera. As Japan's representative in the Miss Universe 2007 pageant, Mori travelled to Mexico City, Mexico in early May to participate in four weeks of events, rehearsals and preliminary competitions with the other seventy-seven delegates.
Mori starred in Donald Trump's MTV reality show Pageant Place along with Rachel Smith, Katie Blair (former Miss Teen USA 2006) and Hilary Cruz (Miss Teen USA 2007). The show started airing on October 10, 2007 and ran for eight episodes.
Mori appeared in Jessica Simpson's VH1 reality show The Price of Beauty in 2010 to showcase the standards of beauty in her home country, Japan.