may refer to the following:
"Kurenai" (song), a song by the metal band X Japan. , a song by Tsuki Amano.
Characters Kurenai Yuhi, a fictional character from the manga series Naruto. Tsubasa Kurenai, a fictional character from the manga series Ranma ½. Kurenai, the main character of the video game Red Ninja: End Of Honor. Kurenai, a faction of Broken Draenei in the computer game World of Warcraft. Maria Kurenai, a character from the manga series Vampire Knight. Wataru Kurenai, the main character in Kamen Rider Kiva. Otoya Kurenai, the father of Wataru Kurenai, in "Kamen Rider Kiva"
Series Kure-nai, a light novel series by Kentarou Katayama and the subsequent manga and anime of the same name. Kurenai no Buta (Porco Rosso), a film directed by Hayao Miyazaki and produced by Studio Ghibli. Kurenai, the Japanese title of the manga Red Prowling Devil by Toshimitsu Shimizu.