Naomi Hayakawa, also credited as 早川ナオミ, is a Japanese mangaka, character designer, and animation director known for work in both adult original video animations (OVAs) and mainstream television anime. The name functions as a pseudonym for the animation director and director Kazuo Tomizawa. Hayakawa is credited as the director and original creator of the OVA series Blind Night, which was produced by C&S Production and released by Japan Home Video from 2002 to 2004.

Beyond this title, Hayakawa has an extensive filmography as an original creator and writer for numerous OVA productions dating back to the mid-1990s. These original works include Beast City, Love Doll, Netorare, Samurai XXX, and the series Public Toilet. In these projects, Hayakawa frequently assumed multiple creative roles, often serving as director, scriptwriter, character designer, and storyboard artist simultaneously. Many of these works fall within the adult genre, reflecting a significant portion of Hayakawa's creative output during the late 1990s and 2000s.

In parallel, Hayakawa has maintained a steady career as a key animator and animation director on mainstream television series. Credits include work on major productions such as JoJo's Bizarre Adventure: Diamond Is Unbreakable and Golden Wind, Ascendance of a Bookworm, Shadows House, Paradise Kiss, Kingdom, and Magia Record: Puella Magi Madoka Magica Side Story. This body of work demonstrates a versatility that spans both adult-oriented OVAs and broad-appeal television anime, with activity continuing into the 2020s on series such as Masamune-kun's Revenge R and CUE!. The first credited works under this name appear in the mid-1990s, beginning with roles as writer and original creator on titles such as Aibyo and Inma Daitoshi.