England, Scotland, Wales and the Isle of Man are neighbours of Ireland.
Northern Ireland is on the island of Ireland.
China shares its northern border with countries like Mongolia, Russia, Kazakhstan, and North Korea.
Austria?
The Republic of Ireland and Northern Ireland.
There are two ways of looking at that. Ireland is a country, so there are no other countries in it. Ireland is also an island that has the Republic of Ireland on it, which can be just called Ireland, and also Northern Ireland.
Ireland shares a land border with Northern Ireland which is part of the UK. That makes Ireland the closest neighbour to the UK. Ireland is the offical English language name of the southern portion of the island of Ireland as used by the Government of Ireland and not Republic of Ireland or The Irish Republic.
There are approximately 43 countries in the world that are smaller than Ireland in terms of land area.
neighbor
Brasil and Argentina
South Africa.
9
Ireland comes in at 120th largest in the world out of 234 countries.