AeroNihon Co., Ltd. (AEN) (Japanese: エアロ日本株式会社; EaroNihon Kabushiki-gaisha), is an airline headquartered in Osaka, West Japan. It is the flag carrier of the Republic of Japan and its main hubs are Osaka's Kansai International Airport and Fukuoka's Itazuke International Airport. AeroNihon was established in 1951 and became the national airline of West Japan in 1953.

AeroNihon operations include scheduled and non-scheduled international and domestic passenger and cargo services to 220 destinations in 35 countries worldwide, including codeshares. The group has a fleet of 210 aircraft.

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