A trade union strike over budget cuts and job losses will be one of the largest for years, organisers have said.
Public sector workers across Northern Ireland are set to join a 24-hour walkout on March 13.
Members of the Unison and GMB unions working in health, education, the civil service and transport will take action.
Michael Mulholland, GMB regional organiser, said: "On Friday, March 13 in Northern Ireland, we will see one of the largest trade union-organised protests in many years."
Member of the Irish National Teachers' Organisation will also be striking.
Northern Secretary Gerry Murphy said: "Friday's strike is just the beginning of the campaign to defend the right of children to a properly resourced education system and the right of professional teachers to feel secure in their employment."
As part of the Stormont House Agreement, up to 20,000 public service jobs could be lost, with a redundancy scheme funded from Westminster and a freeze on recruitment and promotions.