Ami Koshimizu (小清水 亜美, born February 15, 1986) is a Japanese voice actress affiliated with Axl One management. She was born in Kokubunji, Tokyo. She was previously represented by Production Baobab until 2011. In 2007, she was awarded Best Actress in a supporting role at the 1st Seiyu Awards for her role as Kallen Stadtfeld in Code Geass. In 2014, she visited Anime Expo as a guest of honor to promote Kill la Kill as starring character Matoi Ryuko.