The Red Hand Commando (RHC) is a small secretive Ulster loyalist paramilitary group in Northern Ireland that is closely linked to the Ulster Volunteer Force (UVF). Its aim was to combat Irish republicanism – particularly the Irish Republican Army (IRA) – and to maintain Northern Ireland's status as part of the United Kingdom. The Red Hand Commando carried out shootings and bombings, primarily targeting Catholic civilians. As well as allowing other loyalist groupings to claim attacks in their name, the organisation has also allegedly used the cover names "Red Branch Knights" and "Loyalist Retaliation and Defence Group". It is named after the Red Hand of Ulster, and is unique among loyalist paramilitaries for its use of an Irish language motto, Lamh Dearg Abu, meaning 'red hand to victory'.

Ulster loyalism is a strand of Ulster unionism associated with working class Ulster Protestants in Northern Ireland. Like other unionists, loyalists support the continued existence of Northern Ireland within the United Kingdom, and oppose a united Ireland independent of the UK. Unlike other strands of unionism, loyalism has been described as an ethnic nationalism of Ulster Protestants and "a variation of British nationalism". Loyalists are often said to have a conditional loyalty to the British state so long as it defends their interests. They see themselves as loyal primarily to the Protestant British monarchy rather than to British governments and institutions, while Garret FitzGerald argued they are loyal to 'Ulster' over 'the Union'. A small minority of loyalists have called for an independent Ulster Protestant state, believing they cannot rely on British governments to support them. The term 'loyalism' is usually associated with paramilitarism.