Nanatsu Mukunoki, also known as Nanatsu Mukunoki, is a Japanese manga artist and illustrator. Her professional career has been active since approximately 2011. She is known for creating four-panel yonkoma manga, often within the comedy and slice-of-life genres.

Mukunoki's earliest credited manga work is Inari, Yonkoma, Koi Iroha, which was serialized in Kadokawa's Monthly Shonen Ace from May 2013 to October 2013. She followed this with The Innocent Witch and My Daily Life, serialized in Kadokawa's Young Ace from February 2015 to May 2015.

Mukunoki is best known as the original creator of Watashi ni Tenshi ga Maiorita!, also known as Wataten!: An Angel Flew Down to Me. The manga began serialization in Ichijinsha's Comic Yuri Hive in January 2017 and is her most significant and enduring work. The series received an anime television adaptation that premiered in January 2019, followed by a theatrical anime film titled Watashi ni Tenshi ga Maiorita! Precious Friends, which was released in October 2022. Mukunoki is credited as the original creator for both the television series and the film.

Beyond her own serialized works, Mukunoki has contributed illustration work to other projects. She provided an ending card illustration for the television anime Koisuru Asteroid. She has also participated as a contributing artist in various anthology comics, including those for the Yuru Yuri and A Certain Scientific Railgun franchises.

Mukunoki is recognized within the industry for the success of Wataten!, which established her as a notable creator of yuri-infused comedy manga. The property's expansion into a television series and a theatrical film demonstrates its commercial and popular significance.