Hiromu Arakawa (荒川 弘, Arakawa Hiromu; born May 8, 1973) is a renowned Japanese manga artist. She is best known for her iconic manga series, Fullmetal Alchemist (2001–2010), which became a phenomenal success both in Japan and internationally and was adapted into two anime television series.

Arakawa was born and raised on a dairy farm in Hokkaidō. Her passion for becoming a manga artist sparked at a young age. After completing high school, she pursued oil painting classes while contributing to her family's farm. During this period, she also engaged in creating dōjinshi manga with friends and drew yonkoma for a magazine.

Her career as a manga artist officially began in 1999 with the release of STRAY DOG. In 2001, she started her work on the acclaimed series Fullmetal Alchemist, which quickly gained popularity and received a successful anime adaptation.

Additionally, Arakawa is known for her work on Silver Spoon (2011–2019) and the manga adaptation of The Heroic Legend of Arslan novels. Interestingly, she often depicts herself as a cow wearing glasses.