Hikari Okada is a Japanese voice actress affiliated with the agency Production Ace. She was born on November 12 in Chiba Prefecture, Japan.

Okada entered the voice acting industry at a young age after winning the Main Character Child Voice Actor Auditions held in February 2017. Her victory led to her being cast in her first and most prominent anime role, voicing the character Elq Hrqstn in the television series WorldEnd: What do you do at the end of the world? Are you busy? Will you save us? (also known as SukaSuka). The anime began airing in April 2017, and Okada was publicly introduced as the voice of Elq Hrqstn at the AnimeJapan 2017 event, where she appeared on stage with fellow cast members. At the time of her debut, she was a first-grade student.

While her role in WorldEnd remains her sole credit in Japanese anime productions, her voice acting career has continued through work in foreign language dubs for Japanese releases. She has provided the Japanese voice for characters in several major international films. Her dubbing credits include the role of young Jane in Thor: Love and Thunder, the voice of young Shaun in Shang-Chi and the Legend of the Ten Rings, and roles in films such as Midnight Sky, Don't Look Up, and the animated feature Puss in Boots: The Last Wish. She has also performed voice work for television dramas and specials, including providing the Japanese dub voice for the character Sally in a Peanuts special aired on Nippon Television.

Her hobbies include collecting small stones and meditation, and she is skilled in classical ballet, Pilates, and playing the drums.