Hotaru
Hotaru may refer to:

Places
Hotaru, in Grojdibodu Commune, Olt County, Romania
Hotaru, in Andreiașu de Jos Commune, Vrancea County, Romania

People
Hotaru Akane (1983–2016), Japanese actress
Hotaru Hazuki (born 1970), Japanese actress and gravure model
Hotaru Okamoto, manga artist of Only Yesterday
Hotaru Yamaguchi (born 1990), football player
Hotaru Yukijiro, actor, starred in Sexy Battle Girls, GARO

Characters
Hotaru Shidare (枝垂 ほたる, Shidare Hotaru), a character in the manga series Dagashi Kashi
Hotaru (.hack), a wavemaster character in the .hack//Legend of the Twilight Bracelet anime
Hotaru (Mortal Kombat), a male character in the Mortal Kombat fighting games
Hotaru, a character in the manga series Shugo Chara!
Hotaru, a character in the manga series Samurai Deeper Kyo
Hotaru Futaba, a character in SNK Playmore fighting games
Hotaru Himegi, a character in the visual novel If My Heart Had Wings
Hotaru Hoshikawa (星川 ほたる), a character in the manga series New Game!
Hotaru Ichijo, a character in the manga series Non Non Biyori
Hotaru Imai, a character in the anime series Alice Academy
Hotaru Tachibana (立花 蛍), a character in the manga series Aoharu x Machinegun
Hotaru Tomoe, lookalike reincarnation of Sailor Saturn herself, is a supporting character in the manga of Sailor Moon and third season of the 1992-1997 anime. She becomes a supporting character in Sailor Moon Crystal and the 2020 two-part movie Sailor Moon Eternal, based on the 11-episode Dream saga

Other
Hotaru CMS, a GNU GPL licensed, plugin-powered content management system

See also
Hotaru River (disambiguation)
Hotaru no Haka, or Grave of the Fireflies, a 1988 Studio Ghibli anime film
Hotar