Hideyuki Furuhashi, born in 1971 in Kanagawa Prefecture, Japan, is a writer known for his extensive work in Japanese science fiction, light novels, and manga. He graduated from Hōsei University with a degree in Sociology and briefly worked as a graphic assistant at the video game company Capcom, where he contributed to the early development of the first Resident Evil game. Furuhashi made his literary debut in 1996 when he won the second Dengeki Game Novel Prize for his novel Black Rod, a two-volume dystopian story about a society where the government controls human emotions.

Following his debut, Furuhashi built a career writing numerous light novel series, many published under Dengeki Bunko. His body of work includes titles such as Blood Jacket, Solid Fighter, the Tatsumori-ke no Shokutaku series, and IX. He has demonstrated a recurring interest in science fiction themes, including dying-earth scenarios as seen in Fuyu no Kyōjin (The Winter Titans), a story about mobile human cities borne across a polar wasteland. He also wrote licensed sequels for existing properties, notably Samurai Lensman, a novel set within the universe of E. E. Smith's classic Lensman series. In 2005, he published a well-received short story collection titled Aru Hi, Bakudan ga Ochite Kite (One Day, the Bombs Were Falling).

In the realm of manga, Furuhashi is best known as the writer for the series My Hero Academia: Vigilantes. Serialized beginning in 2016, this spin-off of Kohei Horikoshi's popular My Hero Academia series is set several years before the main story and follows a group of unlicensed vigilantes operating in the city of Naruhata. For this work, Furuhashi is credited as the story writer and letterer, with Betten Court providing the artwork, while Horikoshi is credited with the original concept. The series concluded after fifteen volumes and has been published in English by VIZ Media. More recently, Furuhashi began writing the manga Spider-Man: Octo-Girl, a series that reimagines the character Doctor Octopus as a middle school girl in Tokyo, with the first volume released in 2024.

Furuhashi has also served as the original creator for anime adaptations. His manga My Hero Academia: Vigilantes is being adapted into an anime television series, and he holds an original creator credit for a separate television anime scheduled for 2026. Throughout his career, his work has been characterized by unique world-building and creative interpretations of existing properties, contributing to his significance as a versatile figure in Japanese science fiction, light novel, and manga publishing.