Miyoko Asō (麻生 美代子 Asō Miyoko, April 7, 1926 – August 25, 2018) was a Japanese actress and voice actress.

She is best known for her role as the first voice of Fune Isono from 1969 to 2015 in the longest-running Japanese anime series Sazae-san, which first aired in 1969. She was the voice of Dr. Pinako Rockbell in both Fullmetal Alchemist anime adaptations. Asō also starred as an actress in cinema, in the 2006 movie Aogeba Tōtoshi, directed by Jun Ichikawa. On September 18, 2015, it was announced that Asō would step down from her role in Sazae-san. She was replaced by Yorie Terauchi on October 5, 2015. On September 3, 2018, it was reported that Asō had died on August 25 from senility.