Eamon Donnelly (1877 – 29 December 1944) was an Irish politician.
Born in Ulster and living in Newry, Donnelly was elected as an independent republican member of the Parliament of Northern Ireland in Armagh at the 1925 general election. Shortly after his election, he was served with an order excluding him from Northern Ireland. No official reason was given for the granting of this order.
Donnelly was elected to Dáil Éireann as a Fianna Fáil Teachta Dála (TD) for the Leix–Offaly constituency at the 1933 general election. He did not contest the 1937 general election. He also served as Director of Elections for Fianna Fáil.
In 1938, Donnelly visited his wife's house near Newry, and was imprisoned in Belfast Prison, before being given a choice between paying a fine of £25 or returning to gaol. One again, no reason for his exclusion was revealed. That year, he stood for election to the 2nd Seanad, but was not successful.
In 1942, Donnelly was again elected to the Parliament of Northern Ireland, this time in a by-election for Belfast Falls. He did not take his seat.