Motoi Yoshida is a Japanese manga artist born in 1976 in Kyoto, Japan. She is known for creating emotionally complex romance stories primarily aimed at adult readers. Her work is often published in seinen magazines, which target a mature male audience, but her focus on delicate psychological portraiture and nuanced relationships has earned her a dedicated following.

Yoshida is best known as the original creator of the manga series Koi Kaze. The story was serialized in Kodansha's Evening magazine from 2001 to 2004 and collected into five volumes. Koi Kaze is a drama about a 27-year-old man who begins a romantic relationship with his 15-year-old sister after they are reunited as adults, a theme that explores the boundaries of familial and romantic love. In 2004, the manga was adapted into a 13-episode anime television series produced by the studio A.C.G.T., for which Yoshida is credited as the original author.

Beyond Koi Kaze, Yoshida has created several other significant manga works. She made her debut with Mizu to Gin, a short story that would later serve as the prototype for her series Mizu no Iro Gin no Tsuki (Water Colored Silver Moon). Another notable title is Natsu no Zenjitsu (The Day Before Summer), a prequel to Mizu no Iro Gin no Tsuki that focuses on a young art student and an older woman. More recent works include Kannou Sensei, a series exploring the relationship between a novelist and a mysterious woman. Yoshida has also contributed as an artist on Mushishi Gaitan-shuu, an anthology side story to Yuki Urushibara's popular Mushishi series.

Yoshida's artistic identity is characterized by delicate and evolving artwork and a focus on life-size, realistic character portrayals. Her early work featured rougher lines, but her style became more refined and detailed over time. She is known for a strong emphasis on psychological description, creating narratives with significant emotional depth that can be intense for readers. Her stories frequently target an adult demographic and are noted for taking unconventional approaches to romance, sometimes incorporating mature themes and a high level of emotional realism. While her works are not always widely known in mainstream markets, her sensitive handling of difficult subjects has established her as a distinctive voice in the seinen genre. Her series Natsu no Zenjitsu is notable as one of the few of her works to have been fully published in some international markets like South Korea.