Leah Dizon (リア・ディゾン, Ria Dizon, born as Leah Donna Dizon on September 24, 1986) is a model, singer, and a TV personality in Japan, born in Las Vegas, Nevada, US. She has two older brothers, an older sister, and two younger brothers. Her astrological sign is Libra, and her Chinese zodiac sign is Tiger. Her blood type is O. Her ethnicities include Chinese, Filipino and French.

Leah Dizon received moderate success in America including the cover features of various import car magazines. However, her modeling career in the United States gained her much attention and a fanbase overseas, predominantly in Asia. One year after her pictures were posted up on the internet, she already had 2,000,000 hits from search engines. Following the advice of her fans, Dizon sent a demo tape with model photographs of herself to a talent agency in Japan and in April of 2006, after being accepted, she immediately moved to Tokyo. In October 2006, she released her first photobook titled Petite Amie (Girlfriend in French), which was ranked as the third best selling photobook of that year.