Sports governing bodies in the United Kingdom

In the United Kingdom there are some sports governing bodies that cover all of the United Kingdom, some which cover one of the four constituent Countries of the United Kingdom (England, Northern Ireland, Scotland and Wales), and some which cover something in between (usually Great Britain or England and Wales). There are also a number of All-Ireland sports bodies that cover both Northern Ireland and the Republic of Ireland. The structure chosen by each individual sport can appear to be random, but usually it has deep roots in the history of the sport.