Reformed Presbyterian Church of Ireland
- Official site of the denomination, including history, beliefs, mission, and directories.
- http://www.rpc.org/

PCIyouth.org
- Youth Board of the Presbyterian Church In Ireland. Designed to inform and equip youth leaders and young people regarding their youth ministries. News, forums, encounter, camp, serve and leaders.
- http://www.pciyouth.org/

The Presbyterian Church in Ireland
- The official web site of this church on the island of Ireland, detailing structures, congregations, events and resources and providing news, press releases and links.
- http://www.presbyterianireland.org

European Institute of Protestant Studies
- Aiming to expound the Bible, defend biblical Protestantism, and expose what it sees as the errors of Catholicism, Ian Paisley's site contains news, articles, streaming and downloadable audio sermons, pictures, and information about the work of the Institu
- http://www.ianpaisley.org

Free Presbyterian Church
- The official site in the country and worldwide. Links to churches, news, photos, and resources.
- http://www.freepres.org