I'm in Love with the Older Girl Next Door (Japanese: 隣のお姉さんが好き, Hepburn: Tonari no Onee-san ga Suki) is a Japanese web manga series written and illustrated by Koume Fujichika.

It was serialized on Akita Shoten's online platform Manga Cross [ja] from August 2021 to October 2023, with its chapters collected in four tankōbon volumes.

Written and illustrated by Koume Fujichika, I'm in Love with the Older Girl Next Door was serialized on Akita Shoten's online platform Manga Cross [ja] from August 25, 2021,[2] to October 4, 2023.

[3] Akita Shoten collected its chapters in four tankōbon volumes, released from May 19, 2022,[4] to December 20, 2023.

[5] In October 2024, Seven Seas Entertainment announced that they had licensed the series for English publication beginning in March 2025.