2018 British Athletics Championships

The 2018 British Athletics Championships was the national championship in outdoor track and field for athletes in the United Kingdom, held from 3–5 July 2018 at Alexander Stadium in Birmingham. It was organised by UK Athletics. A full range of outdoor events were held up to 5000 metres. The competition served as the main selection event for the 2018 European Athletics Championships and the 2018 Athletics World Cup.

The British Championships for 10,000 metres were held during the European 10,000 metres Cup as part of the Night of 10,000 metre PBs event at Highgate earlier in the year. This event also served as the main qualification event for the 2018 European Athletics Championships for 10,000m.

Selections for the men's and women's marathons were based on results in the 2018 London Marathon.