The 1980–81 British Home Championship was the only British Home Nations international football championship, other than the years of the First World War and Second World War, which was not completed and thus failed to produce a winner.

As with the rugby union 1972 Five Nations Championship the cause of this cancellation was The Troubles in Northern Ireland.

Thus the English and Welsh FAs, whose teams were scheduled to travel to Windsor Park later in the month, declined to play, rendering the tournament incomplete and void.

[1] Scotland were the only team to complete all their matches, including defeating Northern Ireland in Glasgow, and were in a strong position, having also beaten England.

Five months later, in October 1981, Scotland were able to play a qualifying match for the 1982 FIFA World Cup in Northern Ireland without significant difficulties.