John Moore (1763 – 6 December 1799) was an Irish statesman and rebel leader.
From Ashbrook, near Straide, Co. Mayo, John Moore was the son of a prosperous merchant, George Moore. He was educated at the Catholic school of Douai, and at the University of Paris under the assumed name of "Bellew". On his return to Ireland he studied for the bar but seems to have shown little interest in his studies.
At the time of the Irish Rebellion of 1798 a force of 1,000 French soldiers under General Humbert landed at Killala. Moore joined the French as did a considerable number of his tenants. After the Battle of Castlebar which took place on 27 August 1798, General Humbert, on 31 August 1798, issued the following decree, which inter alia appointed John Moore as the President of the Government of the Province of Connacht:
Army Of Ireland
Liberty, Equality
Head quarters at Castlebar, 14th Fructidor, sixth Year of the French Republic, One and Indivisible.
General Humbert, Commander in Chief of the Army of Ireland, desirous of organising with the least possible delay, an administrative power for the Province of Connaught, decrees as follows:
1. The Government of the Province of Connaught shall reside at Castlebar till further orders.
2. The Government shall be composed of twelve members, who shall be named by the General-in-chief of the French Army.
3. Citizen JOHN MOORE is named President of the Government of the Province of Connaught, he is specially entrusted with the nomination and reunion of the members of the Government.
4. The Government shall occupy itself immediately in organising the Military power of the Province of Connaught, and with providing subsistence for the French and Irish Armies.
5. There shall be organised eight regiments of infantry, each of twelve hundred men, and four regiments of cavalry, each of six hundred men.
6. The Government shall declare rebels and traitors to the country all those who having received clothing and arms, shall not join the army within four and twenty hours.