Nayul Kim is a South Korean voice actress known for her work in Korean-language dubbing of anime and animated media. She was born on December 16, 1983. Before becoming a voice actress, she worked as a stylist and majored in costume design, but pursued voice acting after being inspired by the performance of a senior in the industry. She began her career as an exclusive voice actor in 2010 and transitioned to freelance work in 2012, a status she has maintained to the present day.

Kim is recognized for her husky, low-pitched vocal tone, which she has used to portray numerous characters with a boyish or mature quality. Her major voice roles span a wide range of titles. In the animated series My Oni Girl, she provided the Korean voice for the character Tsumugi. She is also known for playing Kang Hae-ra, also known as Cure Sunshine, in the Korean dub of Heartcatch Pretty Cure!. In the re-dubbed version of Sailor Moon, she took on the role of Sailor Uranus. Her other notable anime roles include Setsuna in Yashahime: Princess Half-Demon and various characters across the long-running series Boy Detective Kim Jeon-il. In the gaming field, she voiced Titania in the online game Elsword. Her work also extends to foreign film dubbing, where she has been the dedicated Korean voice for actress Sofia Carson and has voiced Valkyrie in Avengers: Endgame.

Regarding collaborations, Kim has worked with a variety of fellow voice actors, most frequently with Kim Bo-na. Throughout her career, she has demonstrated versatility, with her dialect performances being particularly praised. She has also worked as a lecturer at a voice actor academy, contributing to the development of new talent in the industry.