Frank Sheridan, is a retired Irish diplomat and, at the time of his retirement in 2014, was Irish Ambassador to Brazil. Earlier in his career he had served in the office of Dr Garret FitzGerald when he was Foreign Minister and as Private Secretary to Foreign Minister, Peter Barry, during the later stages of the negotiation of the Anglo-Irish Agreement of 1985. Following retirement, he completed a Master's degree in Trinity College Dublin in contemporary Irish history, focusing on the New Ireland Forum and the period covered by the memoir of Sir David Goodall.