•
Bob McDonagh (1924–2015), Irish diplomat •
Bobby McDonagh (born 1954), Irish diplomat, son of Bob McDonagh •
Brendan McDonagh, Managing Director of the
National Asset Management Agency in Ireland •
Charlotte McDonagh (born 1984), British actress •
Donagh MacDonagh (1912–1968), Irish writer and judge (son of Thomas below) •
Eileen MacDonagh (born 1956), Irish sculptor •
Enda McDonagh (1930–2021), Irish priest of the Catholic Church •
Francesca McDonagh (born 1974/75), Irish-British banker •
Isabella Mercia McDonagh (1899–1982), also known as Marie Lorraine, Australian actress •
Jacko McDonagh (born 1962), Irish professional footballer •
Jarlath McDonagh (born 1945), Irish politician •
Jay McDonagh (born 1973), American football player •
Jamie McDonagh (born 1996), Northern Irish professional footballer •
Jim McDonagh (born 1952), nicknamed Seamus, goalkeeping coach at Aston Villa •
Joe McDonagh (1953–2016), 32nd President of the
Gaelic Athletic Association •
Joseph MacDonagh (1883–1922), Irish
Sinn Féin politician •
John MacDonagh (1880–1961), Irish film director (brother of Thomas MacDonagh) •
John Michael McDonagh (born 1967), English-born Irish screenwriter and film director •
Joseph MacDonagh (died 1922), Irish Sinn Féin politician (brother of Thomas) •
Oliver MacDonagh (1924–2002), professor of Irish history who made a particular study of the historic relationship between Ireland and the United Kingdom •
Maitland McDonagh, American film critic and the author of several books about cinema •
Margaret McDonagh, Baroness McDonagh (1961–2023), British Labour Party politician and was General Secretary of the Labour Party from 1998 to 2001 (sister of Siobhain) •
Martin McDonagh (born 1970) contemporary English-born Irish playwright and film director •
Bill McDonagh (1928–2019), professional Canadian ice hockey player •
Michael MacDonagh (1698–1746) Irish Roman Catholic prelate who served as the Bishop of Kilmore from 1728 to 1746 •
Mike McDonagh, Irish humanitarian and senior United Nations official working for the United Nations Office for the Coordination of Humanitarian Affairs •
Monika MacDonagh-Pajerová (born 1966), Czech academic •
Pat McDonagh (disambiguation), multiple people •
Patrick McDonagh (1906–?), Scottish footballer •
Paulette McDonagh (1901–1978), Australian film director •
Peter McDonagh (born 1977), Ireland is a professional boxer •
Philip McDonagh (born 1952), poet and former Irish diplomat •
Phyllis McDonagh (1900–1978), Australian film producer, production designer and journalist •
Ryan McDonagh (born 1989), American professional ice hockey defenceman •
Siobhain McDonagh (born 1960), British Labour Member of Parliament for the Mitcham and Morden constituency in London (sister of Margaret) •
Stephen McDonagh (born 1970), retired Irish sportsperson •
Seamus McDonagh (boxer), retired professional boxer who currently works as an actor, screenwriter and filmmaker •
Terence MacDonagh (1908–1986), English oboe player, nephew to Thomas MacDonagh below and first cousin to Donagh MacDonagh above •
Thomas MacDonagh (1878–1916), Irish nationalist poet, playwright, and a leader of the 1916 Easter Rising •
Willo McDonagh (born 1983), Irish footballer ==Places==