, best known mononymously as hiro, is a Japanese singer.

, née , (born 1974) is a Japanese politician, professional wrestling valet, occasional professional wrestler and professional wrestling promoter best known in the United States for her work with World Wrestling Entertainment on its SmackDown! brand under the ring name Hiroko.

, sometimes mistakenly referred to as Yōko Nagata, was a Japanese leftist revolutionary and terrorist who was convicted of murder and sentenced to death.