Manning is a family name. Manning is a family surname which is particularly prevalent among those of Irish descent.The Manning family descends from the 37th King of Ulster, North-East Ireland, who ruled until around 450 A.D. This King was very wealthy and was, therefore, called the Maoin, which translates as riches or wealth. The Clan of Maoin was said to have been converted to the Catholic faith by Saint Patrick himself. Sometime between the 10th and 13th centuries many of the Maoins crossed the English Channel and settled in Southern England on the Kentish Coast and, according to English Law, they were forced to give their name an English form: they chose Manning, others chose Mannion. Manning is also the name of a Galway family who were formerly chiefs of Sodhan, a district nearly co-extensive with the barony of Tiaquin. O'Mainnín, Kind of Sodhan, is mentioned in the Chronicon Scotorum as early as the year 1135, and the O'Mainnins continued to form a distinct clan down to the time of James I of England. The chief resided at Menlough Castle, in the parish of Killascobe, Galway. In 1617, Hugh O'Mannin surrendered his estates, but a small portion of it was restored under the Act of Settlement in 1676 where the name is still common in Galway and Roscommon, and has spread into other parts of Ireland.