Hideaki Yoshikawa is a Japanese manga artist and original creator, with his name written in kanji as 吉川英朗. Information indicates he was born in Hyogo Prefecture, Japan.

Yoshikawa is best known as the author and illustrator of the manga series Kagaku na Yatsura, which was serialized in Akita Shoten's seinen manga magazine Champion Red Ichigo from February 2010 to December 2013. The series was compiled into six tankōbon volumes, with the first released on March 20, 2011, and the final volume published on February 20, 2014. The story centers on a high school boy caught between two eccentric childhood friends, one a half-cyborg and the other a genetically modified half-dog hybrid, as they use their respective science clubs to compete for his attention. This work was adapted into an original video animation (OVA) produced by Hoods Entertainment and directed by Hiraku Kaneko. The OVA was bundled with the limited edition of the manga's fourth volume, released on February 20, 2013.

Beyond Kagaku na Yatsura, Yoshikawa's career as a manga creator includes several other series. He is credited as the artist for Dungeon Builder: The Demon King’s Labyrinth is a Modern City!, a manga adaptation of the light novel series by Rui Tsukiyo, with the English-language edition published by Seven Seas Entertainment. He is also identified as the creator of The Other Side of Secret manga. Additional titles associated with Yoshikawa, based on publication records, include works dating back to 2008, showcasing his ongoing activity in the industry.

His artistic identity is closely tied to the seinen demographic, with his works often blending science fiction concepts with comedy and ecchi elements, typically featuring narratives driven by eccentric female characters and absurd, technology-fueled scenarios. His role as the original creator and character designer for Kagaku na Yatsura led to its anime adaptation, demonstrating his significance as a source material creator for the broader anime industry.