Michael O'Callaghan (or similar) may refer to: * Michael O'Callaghan (Paralympian), New Zealand Paralympian who competed in athletics * Mike O'Callaghan, governor of Nevada * Michael O'Callaghan (politician), see

History of Limerick The history of Limerick stretches back to its establishment by Vikings as a walled city on King's Island, Limerick, King's Island (an island in the River Shannon) in 812, and to the granting of Limerick's city charter in 1197. John, King of E ...

* Michael O'Callaghan (hurler)

See also