1981 UK Athletics Championships

The 1981 UK Athletics Championships was the national championship in outdoor track and field for the United Kingdom held at Antrim Stadium, Antrim. It was the first time that a national track and field championship was held in Northern Ireland.

It was the fifth edition of the competition limited to British athletes only, launched as an alternative to the AAA Championships, which was open to foreign competitors. However, because the calibre of national competition remained greater at the AAA event, the UK Championships this year were not considered the principal national championship event by some statisticians, such as the National Union of Track Statisticians (NUTS). Many of the athletes below also competed at the 1981 AAA Championships.