Concannon (other spellings Ceanainn, Concanen, Concanon and Conceanainn) may refer to:
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Richard Luke Concanen, O.P., was an Irish prelate of the Roman Catholic Church, who served as the first bishop of the Diocese of New York (1808–1810).
Donnchadh is a masculine given name common to the Irish and Scottish Gaelic languages. It is composed of the elements donn, meaning "brown" or "dark" from Donn a Gaelic God; and chadh, meaning "chief" or "noble". The name is also written as Donnchad, Donncha, Donnchadha and Dúnchad. Modern versions include Donnacha, Donagh, Donough, Donogh and Duncan. It is also anglicised as Dennis or Denis and Dionysius.
John Joseph "Jack" Concannon Jr. was an American football quarterback in the National Football League (NFL) for the Philadelphia Eagles, Chicago Bears, Dallas Cowboys, Green Bay Packers, and Detroit Lions. He played college football at Boston College.
Helena Concannon was an Irish historian, writer, language scholar and Fianna Fáil politician.
Events from the year 1747 in Ireland.
Events from the year 1878 in Ireland.
Events from the year 1780 in Ireland.
Patrick O'Brien may refer to:
Events from the year 1749 in Ireland.
Uí Díarmata was a local kingdom located in what is now north County Galway.
Kings of Uí Díarmata from c.971 onwards. There are large temporal gaps where no kings or lords are attested.
Muirgeas ua Cú Ceanainn was King of Uí Díarmata.
Cú Ceanain mac Tadhg, Prince of Uí Díarmata, ancestor of the Concannon family, died 991
Events from the year 1808 in the United States.
Uada Ua Con Ceanainn was King of Uí Díarmata.
Tomás Bán Ó ConceanainnThomas Concannon was an Irish writer and historian.
Tomas Ó Con Ceanainn, Lord of Uí Díarmata, died 1478.
William Ó Con Ceanainn, Lord of Uí Díarmata, died 1478.
Davok Ó Con Ceanainn, Lord of Uí Díarmata, fl. 1478.
Events from the year 1167 in Ireland.