is a Japanese politician of the Constitutional Democratic Party of Japan (CDP), a member of the House of Representatives in the Diet (national legislature). A native of Kawagoe, Saitama, she attended Keio University and received a master's degree from Nihon University. After having served in the assembly of Saitama Prefecture for two terms since 1995, she ran unsuccessfully for the House of Representatives in 2000 as an independent and in 2001 as a member of Ichirō Ozawa's Liberal Party. She ran once again in 2003, this time as a member of the Democratic Party of Japan, and was elected for the first time.
Komiyama is part of the CDP's shadow cabinet 'Next Cabinet' as the shadow Minister of Land, Infrastructure, Transport and Tourism.[1]