| 100 Nichi Go ni Shinu Wani | |
| Ja Kanji: | 100日後に死ぬワニ |
| Ja Romaji: | Hyaku Nichi Go ni Shinu Wani |
| Genre: | Slice of life |
| Type: | manga |
| Author: | Yuuki Kikuchi |
| Publisher: | Shogakukan |
| Demographic: | Shōnen |
| Imprint: | Gessan Shōnen Sunday Comics |
| First: | December 12, 2019 |
| Last: | March 20, 2020 |
| Volumes: | 1 |
| Type: | film |
| 100 Nichikan Ikita Wani | |
| Director: | Shinichiro Ueda |
| Music: | Seiji Kameda |
| Studio: | TIA |
| Released: | July 9, 2021 |
is a Japanese web manga series written and illustrated by Yuuki Kikuchi. The series, which depicts a crocodile's last 100 days before his death, was self-published on Twitter between December 2019, and March 2020. A single tankōbon volume was published by Shougakukan in April 2020. An anime film adaptation produced by TIA, titled, was scheduled to be released in May 2021, but was delayed to July 2021, due to the COVID-19 pandemic.
Written and illustrated by Yuuki Kikuchi, 100 Nichi Go ni Shinu Wani was published on the author's Twitter account from December 12, 2019, to March 20, 2020.[1] A single tankōbon volume was published by Shougakukan on April 8, 2020.[2]
An anime film adaptation produced by TIA, titled, was scheduled to be released on May 28, 2021,[1] [3] [4] but was delayed to July 9, 2021, due to the COVID-19 pandemic.[5] [6]
The manga was ranked 28th in Kadokawa Corporation's Da Vinci magazine's "Book of the Year" list in 2020.[7]