Nana Katase (片瀬那奈, Katase Nana, born November 7, 1981) is a Japanese actress, singer, and fashion model. She is known for acting in Death Note 2: The Last Name (2006), Arakawa Under the Bridge (2010) and 20th Century Boys 1: Beginning of the End (2008).

Katase portrayed Kiyomi Takada in Death Note: The Last Name. She also portrayed Megumi Yokota as an adult (with Mayuko Fukuda who played the role of a younger Megumi Yokota) as one of at least thirteen Japanese citizens kidnapped by North Korea in the late 1970s and early 1980s in Saikai: Yokota Megumi-san no Negai. She also played Mayumi in the fifth installment of the PlayStation series by Sega, Yakuza.