The British 400 metres athletics champions covers four competitions; the current
British Athletics Championships which was founded in 2007, the preceding
AAA Championships
The AAA Championships was an annual track and field competition organised by the Amateur Athletic Association of England. It was the foremost domestic athletics event in the United Kingdom during its lifetime, despite the existence of the officia ...
(1880-2006), the Amateur Athletic Club Championships (1866-1879) and finally the
UK Athletics Championships
The UK Athletics Championships was an annual national championship in track and field for the United Kingdom, organised by the British Athletics Federation. The event incorporated the 1980 Olympic trials for the British Olympic team. The venue f ...
which existed from 1977 until 1997 and ran concurrently with the AAA Championships.
The AAA Championships were open to international athletes but were not considered the National Champion in this list if they won the relevant Championship.
Past winners
nc = not contested
+ = UK Championships
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400 metres
The 400 metres, or 400-meter dash, is a sprint event in track and field competitions. It has been featured in the athletics (sport), athletics programme at the Summer Olympics since 1896 for men and since 1964 for women. On a standard outdoor runn ...
British