Yuka Nishigaki is a Japanese voice actress and stage actress affiliated with the talent agency Ken Production. She was born on September 3, 1982, in Tottori Prefecture, Japan. Some sources list her birth date as November 21, though this may be for a different individual with a similar name. She is married to fellow voice actor Tsubasa Yonaga.

Nishigaki began her voice acting career in the mid-2000s, with early roles in series such as Peach Girl in 2005 and Sasami: Magical Girls Club in 2006. A significant early role was providing the voice of a young Setsuna F. Seiei in the popular series Mobile Suit Gundam 00.

She is perhaps best known for her long-running role as Kazemaru Ichirouta in the Inazuma Eleven multimedia franchise. She first voiced the character in the 2008 television anime and has continued to play the role across numerous sequels, films, and video games, including Inazuma Eleven: Ares no Tenbin and Inazuma Eleven: Orion no Kokuin. Her other notable roles in the franchise include Masakatsu Hiyori in Inazuma Eleven: Orion no Kokuin.

Beyond Inazuma Eleven, Nishigaki's career includes a wide variety of character roles. She voiced the character Koji in the anime Stitch!: Itazura Alien no Daibōken. She is also recognized for her performances as Yuu in Guilty Crown, Toshihiko "Monta" Saruta in Sasami: Magical Girls Club, and younger versions of male characters, such as Shota Kuroishi in Squid Girl. Her filmography also includes roles in the Pokémon anime series and various video games.