The British–Irish Parliamentary Assembly (BIPA, Irish: Tionól Pharlaiminteach na Breataine agus na hÉireann) is a deliberative body consisting of members of legislative bodies in the United Kingdom, Ireland, and the British crown dependencies. Its purpose is to foster common understanding between elected representatives from these jurisdictions.
The assembly consists of members of the Parliament of the United Kingdom and the Oireachtas (the Irish parliament) as well as five representatives from the Scottish Parliament, five from the National Assembly for Wales, five from the Northern Ireland Assembly, and one each from the States of Jersey, the States of Guernsey and the Tynwald of the Isle of Man.
The assembly was established in 1990 as the British–Irish Inter-Parliamentary Body (BIIPB). It initially consisted of 25 members of the Parliament of the United Kingdom and 25 members of the Oireachtas, the Irish parliament.
In 1998 the British-Irish Council was established under Strand 3 of the 1998 Good Friday Agreement. The Council involves brings together ministers from the British and Irish governments, from the devolved administrations in the various parts of the United Kingdom, and from the crown dependencies. However Strand 3 stated that, as well as inter-governmental links, "the elected institutions of the members will be encouraged to develop inter-parliamentary links, perhaps building on the British-Irish Inter-Parliamentary Body". In 2001 the assembly was enlarged to include representatives of legislative bodies in Scotland, Wales, Northern Ireland, the Isle of Man, Guernsey and Jersey.