셋쓰 국
was a Japanese domain of the Edo period, located in Settsu Province. It was founded by Aoki Kazushige, who had served as a vassal of Toyotomi Hideyori, but was granted Asada after the Osaka Campaign, by Tokugawa Ieyasu. The domain was rated at 12,000 "koku", and remained under the rule of the Aoki clan until the Meiji era.