Hayley Nelson is an American voice actress and singer based in Southern California, who also freelances as a multimedia designer, illustrator, and animator. Her voice work spans animation and video games, where she is recognized for a bright, versatile, and theatrical vocal style. Nelson gained significant recognition for her role as Sofia Porter in the Australian animated web series Meta Runner, which aired from 2019 to 2022. She also contributed additional voice work to the pilot episode of the web series Murder Drones.

Her video game credits are extensive and include the roles of Mi-An in My Time at Sandrock, Virginia Ruhl in In Sound Mind, Tina-28 in Dunk Lords, Linda in My Time at Portia, Hilda in Viking Rise, Kuruna in Pixel Princess Blitz, Andrea in Learn Japanese to Survive: Katakana War, and Master of Hearts in Heroes of Newerth. In the anime series Makina-san’s a Love Bot?!, which is the English title for Kakushite! Makina-san!!, Nelson provides the English voice for the character Mamimi. Some sources also list her as voicing the character Mimika Imose in the same series. Her other anime roles include additional voices in the English dub of the series.