Asō (Japanese: 麻生), also spelled Asou or Asoh, is a Japanese surname. People with this surname include:
Haro Aso (麻生羽呂), Japanese manga artist
Hiromi Asō (麻生 ひろみ, born 1972), an alternate stage name of Marina Ōno, a Japanese voice actress and singer
Izumi Aso (麻生 いずみ, born 1960), Japanese manga artist
Kaori Asoh (麻生 かほ里, born 1967), Japanese theatre and voice actress
Aso Koremitsu (阿蘇 惟光, 1582–1593), Japanese nobleman of the Azuchi-Momoyama era
Kumiko Asō (麻生 久美子, born 1978), Japanese actress
Mamiko Asō (麻生 真宮子, born 1964), Japanese singer and businesswoman
Miyoko Asō (麻生 美代子, 1926–2018), Japanese voice actress
Natsuko Aso (麻生 夏子, born 1990), Japanese actress and singer
Tarō Asō (麻生 太郎, born 1940), politician and 59th Prime Minister of Japan
Wataru Asō (麻生 渡, born 1939), Japanese governor of Fukuoka prefecture from 1995 to 2011
Yumi Asō (奥村 由美, born 1963), Japanese actress
