Hitori Nakano is a credited name associated with the original story for several manga and media adaptations of the Japanese phenomenon Densha Otoko (Train Man). The name is not that of a single individual but rather a collective pseudonym. It is derived from the phrase naka no hitori, which translates to one of those people, a reference to the anonymous participants on the 2Channel internet forum whose posts formed the basis of the original story. As such, Hitori Nakano serves as the official original creator credit for the narrative that originated from this online community.

The credited works under the name Hitori Nakano include multiple manga adaptations of the Densha Otoko story. One such manga is Densha Otoko - Ganbare Dokuotoko!, a three-volume series published by Akita Shoten beginning in 2005, with illustration by Daisuke Dōke. Another is Train Man: A Shojo Manga, a single-volume manga published by Kodansha in 2005 and illustrated by Machiko Ocha. Beyond manga, the credit extends to other media, with Hitori Nakano listed as the original creator for the live-action film adaptation and the original story for the live-action television series.

The artistic identity associated with Hitori Nakano is inseparable from the origin of the Densha Otoko story itself. This narrative originated from a 2004 thread on 2Channel where an anonymous poster, described as a shy otaku, sought advice from fellow users on navigating a potential romance with a woman he defended on a train. The collective advice and encouragement from the online community formed the core of the story, making the use of a collective pseudonym a direct reflection of its collaborative and anonymous origins. This origin grants Hitori Nakano a unique place in the industry as a representation of user-generated content transitioning into mainstream commercial media.