| Senpai Is an Otokonoko | |
 First tankōbon volume cover, featuring Makoto Hanaoka | |
| 先輩はおとこのこ (Senpai wa Otokonoko) | |
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| Genre | |
| Manga | |
| Written by | Pom |
| Published by |
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| English publisher |
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| Original run | December 7, 2019 – December 30, 2021 |
| Volumes | 10 |
| Manga | |
| Senpai Is an Otokonoko: The Encounter | |
| Written by | Pom |
| Published by | Line Corporation |
| Original run | December 21, 2023 – present |
| Anime television series | |
| Directed by | Shinsuke Yanagi |
| Written by | Yoriko Tomita |
| Music by | Yukari Hashimoto |
| Studio | Project No.9 |
| Licensed by | Crunchyroll (streaming) |
| Original network | Fuji TV (Noitamina) |
| Original run | July 5, 2024 – September 27, 2024 |
| Episodes | 12 |
| Anime film | |
| Eiga Senpai wa Otokonoko: Ame Nochi Hare | |
| Directed by | Shinsuke Yanagi |
| Written by | Yoriko Tomita |
| Music by | Yukari Hashimoto |
| Studio | Project No.9 |
| Released | February 14, 2025 |
Senpai Is an Otokonoko (Japanese: 先輩はおとこのこ, Hepburn: Senpai wa Otokonoko, "My Upperclassman Is an Otokonoko"), also known as This Is Him or Senpai Is an Otokonoko: My Crossdressing Classmate, is a Japanese romance manga series written and illustrated by Pom. It was serialized digitally through Line Manga from 2019 to 2021 as a weekly series, and is collected in tankōbon print volumes by Ichijinsha since 2021. The story follows a love triangle involving Makoto Hanaoka, a cross-dresser; Saki Aoi, a bisexual younger student; and Ryuji Taiga, a childhood friend of Makoto's. Senpai Is an Otokonoko received an official English translation by Webtoon beginning on March 9, 2023. An anime television series adaptation produced by Project No.9 aired from July to September 2024 on Fuji TV's Noitamina programming block. An anime film titled Eiga Senpai wa Otokonoko: Ame Nochi Hare is set to premiere in February 2025.
Pom created the series with themes such as love regardless of gender, and originally came up with the concept based on how she had difficulties in drawing male characters. The series was popular with readers and well received by critics for its writing and characters, becoming the third-place web manga winner of the 2021 Next Manga Award and the third most read Line Manga series of 2021.