Shiho Niiyama was a Japanese voice actress from Matsuyama, Ehime, affiliated with Aoni Production at the time of her death. Niiyama was most known for her roles as Kou Seiya/Sailor Star Fighter in the Pretty Soldier Sailor Moon series, Risa Kanzaki in Neighborhood Story, Suou Takamura in Clamp School Detectives, and Deedlit in Record of Lodoss War: Chronicles of the Heroic Knight. She was also involved in the voice actor group Virgo, who were the voice actresses in the anime and game Ojōsama Sōsamō.