Mona Yamamoto (山本 モナ, Yamamoto Mona, born February 11, 1976, Onomichi, Hiroshima Prefecture, Japan) is a Japanese TV announcer and presenter. Her father is Norwegian and she became a naturalized Japanese citizen at the age of 6. After graduating from Gakushuin University, Mona joined the Asahi Broadcasting Corporation as an announcer. She presented the TV series Jackass in Japan. In September 2006 she worked for five days on the Tokyo Broadcasting System news program News23 before stepping down due to a love affair with married Democratic Party of Japan executive Goshi Hosono.