Shion Hirota is a Japanese female voice actress born on September 23, 1986. She began her career in 2002 after being selected as a member of Gamers Guardian Fairies, a voice actor unit created by the company Broccoli. Her debut in an animated series came in 2003 with a role in Digicarat Nyo. In October 2005, she transferred her agency affiliation to Production Baobab. She remained with Production Baobab until December 2016, after which she left and later worked without agency representation.

Hirota has contributed voice work to a variety of anime series and films. Among her notable roles is Satsuki Tsuchida in the 2010 series Hanamaru Kindergarten. She also voiced the character Misaki in the 2011 series Nyanpire - The Vampire Cat. Her filmography includes the role of Furano in the 2006 series Inukami! and its subsequent 2007 movie. She was also part of the cast for Nōgyō Musume! (titled Agricultural Girl), which was released in 2010. In addition, she voiced the character Utano Hokke for the series Soreyuke! Gedou Otometai and Akahori Gedō Hour Rabuge. Other roles from this period include appearances in Canvas 2: Rainbow Colored Sketch in 2005, Mobile Suit Gundam 00 the Movie: Awakening of the Trailblazer in 2010, and the role of Siesta 00 in the 2009 series Umineko: When They Cry.

Following her departure from Production Baobab in 2016, her career entered a period of lower public visibility, leading to industry rumors of her retirement. However, she addressed these rumors in a 2023 appearance, stating she had continued to work in voice acting, primarily on projects in the adult gaming industry, and had not retired. She made a return to a major anime-related project in 2022 with a guest appearance in Reiwa no Di Gi Charat, a work connected to the series in which she had debuted. Beyond voice acting, she was also a member of a five-person voice actor unit called Affair Girls Team and has been noted for her dancing ability.