The names of more than 3,500 people who died as a result of the Troubles have been read out at a three-hour service at the Unitarian Church on Dublin's St Stephen's Green.
This is the seventh year in which the annual commemoration is taking place and is the only religious service of its kind in Ireland.
It takes place almost 10 years since the signing of the Good Friday Agreement.
The service opened at noon with the lighting of a candle. The congregation heard Minister Bridget Spain commence the reading of the litany of the dead in alphabetical order.
The first was Anthony Abbott, a soldier from Manchester shot dead by the IRA in Ardoyne in Belfast in 1976.
The last was William and Letitia Younger, an elderly Protestant man and his daughter who were beaten, shot and stabbed by intruders in Ligoniel, Co Antrim in 1980.
The roll of the dead stretched over 41 years, beginning in 1966 with John Patrick Scallion, a Catholic storeman shot by the UVF and ending last year with Denis Donaldson, the IRA double agent.
Reverend Spain said she hoped today's service would have added meaning because this spring marks the 10th anniversary of the signing of the Good Friday Agreement.
