The 1977 UK Athletics Championships was the national championship in outdoor track and field for the United Kingdom held at Cwmbran Stadium, Cwmbran. It was the first edition of the competition limited to British athletes only, launched as an alternative to the AAA Championships, which was open to foreign competitors. However, due to the fact that 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 (NUTS). Many of the athletes below also competed at the .