The 1886 Belfast riots are a series of intense riots that begin in Belfast on June 4, 1886, and continue throughout the summer and autumn of 1886.

In the late 19th century, Catholics began to migrate in large numbers to the prosperous city of Belfast in search of work. By the time of the riots, Catholics make up over one-third of the population of the city. This migration brings with it sectarian tensions as Catholics and Protestants competed for jobs. As the minority, Catholics find themselves discriminated against in this area and are kept at the lower end of the labour market.

At this time there is a real possibility that the British government will establish a devolved Irish parliament (see Irish Home Rule Movement). Belfast Catholics believe that a devolved Irish government will be sympathetic to their situation and end the discrimination. Belfast Protestants believe this as well, and fear the end of their privileged position.

In April 1886, Prime Minister William Gladstone introduces a Home Rule Bill. The Bill is defeated in the House of Commons on June 8. The future Leader of the Conservative Party, Lord Randolph Churchill visits Belfast after the defeat of the Bill where he makes speeches against the possibility of future Home Rule Bills. He is said to have “…excited sectarian passions which expressed themselves in horrible assaults on the Nationalist minority.”

The introduction of the Bill leads to renewed sectarian tensions in Belfast. On June 3, a Catholic navvy sneers to a Protestant co-worker that under an Irish government Protestants will never get hired, even in Belfast. This represents the very worst fears of Protestants towards Home Rule and the story quickly spreads throughout Belfast. This leads to clashes between Protestant and Catholic shipyard labourers.

The riots intensif on June 8, the day that the Home Rule Bill is defeated in parliament. Celebrations are held throughout the city to celebrate the defeat. Some of the revellers attack Catholic homes and businesses. The police find themselves unable to cope with the situation. Reinforcements are sent in from other parts of Ireland. Most of the reinforcements are Catholic. A rumour that the reinforcements have been sent by Gladstone to punish Belfast Protestants for opposing Home Rule spreads throughout the city. It is encouraged by popular preachers such as Hugh Hanna and his Church of Ireland counterpart, the city’s Orange Order Grand Master, Rev. Richard Rutledge Kane. In the midst of the disorder, Kane declares that unless the police are disarmed, 200,000 armed Orangemen will relieve them of their weapons. The rioters thus begin to attack the police, and later the soldiers. Running battles between security forces and rioters lasts until June 14.

On June 22, the reinforcements are sent home by the city government, although some are kept as trouble is expected on July 12, the date of annual Protestant celebrations. Trouble does indeed erupt on the 12th and, contrary to the expectations of the government, the police find themselves overwhelmed by the Protestant attackers. Reinforcements have to be sent into Belfast again, and the threat of over 2,000 police officers and soldiers descending on the city causes the rioters to quit by July 14.

On the last Saturday of July, Hanna holds his annual outing for the Protestant children of Belfast. This outing usually involves a trip to the countryside, with marching and drumming along the way. Hanna agrees to comply with the city’s request that he forgo the drumming and marching due to the tense situation. As the outing makes its way through Belfast, disappointed local Protestants join in to march with their own drums and anti-Catholic banners. Marchers deliberately provoke the Catholics by marching into Catholic areas. Taunting quickly gives way to heavy street fighting between Catholics, Protestants and police. Bloody clashes on par with the riots in June last for a few days, but low-intensity rioting continues until September.

Officially thirty-one people are killed in the riots, although George Foy, who makes surgical reports on the riots, reckons that the real death toll might be as high as fifty. Hundreds are injured. Over four hundred arrests are made. An estimated £90,000 worth of property damage is incurred, and local economic activity is significantly compromised.