Babanba Banban Vampire (Japanese: ババンババンバンバンパイア, Hepburn: Babanba Banban Banpaia) is a Japanese manga series written and illustrated by Hiromasa Okujima. It began serialization in Akita Shoten's shōnen manga magazine Bessatsu Shōnen Champion in October 2021. An anime television series adaptation produced by Gaina aired from January to March 2025, and a live-action film adaptation opened in Japanese theaters in July 2025.

Ranmaru Mori, a 450-year-old vampire, lives and works at a long-established public bathhouse called Koi-no-Yu. Years earlier, when he was severely injured while being hunted by vampire hunters, his life was saved by a young boy named Rihito, the son of the bathhouse owners. Since then, Ranmaru has remained at the bathhouse as a live-in worker, secretly planning to one day drink Rihito's blood, which he believes will be at its best when Rihito becomes an 18-year-old virgin.

To preserve the "perfect" conditions for this plan, Ranmaru carefully watches over Rihito's life and tries to prevent him from getting into romantic or sexual relationships. However, when Rihito enters high school and falls in love with a classmate named Aoi, Ranmaru begins interfering in his daily life in order to stop their relationship from progressing. While trying to sabotage Rihito's chances at romance, Ranmaru must also hide his identity as a vampire and deal with other supernatural threats.

Written and illustrated by Hiromasa Okujima, Baban Baban Ban Vampire began serialization in Akita Shoten's shōnen manga magazine Bessatsu Shōnen Champion on October 12, 2021. The series' chapters have been compiled into thirteen tankōbon volumes as of April 2026.

In March 2026, Dark Horse Comics announced that they had licensed the series for English publication, with the first volume set to release in November later in the year.

An anime television series adaptation was announced on Garlic Day on February 29, 2024. It is produced by Gaina and directed and written by Itsuro Kawasaki, with assistant direction by Takahiro Tamano, characters designed by Yukiko Ban, and music composed by Jun Ichikawa. The series aired from January 11 to March 29, 2025, on the brand new IMAnimation programming block on TV Asahi and its affiliates. The opening theme song is "Bloody Liar", performed by Blue Encount [ja], while the ending theme song is "Ne-Chu-Show", performed by Botchi Boromaru [ja]. Netflix streams the series globally.

A live-action film adaptation was also announced on Garlic Day on February 29, 2024. It is produced by Shochiku and TV Asahi, directed by Shinji Hamasaki and written by Yūko Matsuda. It was originally set to premiere in Japanese theaters on February 14, 2025, but was later delayed due to "various circumstances" related to Ranmaru's actor, Ryo Yoshizawa, and his 2024 trespassing incident. The film opened on July 4, 2025.

The film was also selected at the 24th New York Asian Film Festival, which was held from July 11 to July 27, 2025, for its North American Premiere.