The list of British 800 metres athletics champions covers four competitions;
The AAA Championships were open to international athletes but a guest international was not considered the National Champion in this list if they won the relevant Championship, that title going to the highest placed British athlete in the event. Despite this, the AAA Championships were regarded as more prestigious than the British-only UK Championships event for most of the latter's existence, although both were recognised as national championships. The UK Championships were ended in 1997, while the AAA Championships were supplanted by the British Athletics Championships in 2007. While the AAA Championships continue, they are no longer regarded as crowning a British champion.
| AAC Championships 880 yards, mens event only | |||
|---|---|---|---|
| width=80 | Year | width=300 | Men's champion |
| 1866 | Percy Thornton | ||
| 1867 | William Frere | ||
| 1868 | Edward Colbeck | ||
| 1869 | Robert Somers-Smith | ||
| 1870 | Robert Somers-Smith | ||
| 1871 | Arthur Pelham | ||
| 1872 | Thomas Christie / George Templer | ||
| 1873 | Arthur Pelham | ||
| 1874 | Edward Sandford | ||
| 1875 | Edward Sandford | ||
| 1876 | Frederick Elborough | ||
| 1877 | Frederick Elborough | ||
| 1878 | Henry Whately / Lees Knowles | ||
| 1879 | William Bolton / Charles Hazen-Wood | ||
| AAA Championships 880 yards, men's event only | |||
|---|---|---|---|
| width=80 | Year | width=300 | Men's champion |
| 1880 | Samuel Holman | ||
| 1881 | Sidney Baker | ||
| 1882 | Walter George | ||
| 1883 | William Birkett | ||
| 1884 | Walter George | ||
| 1885 | G.W. Wathen | ||
| 1886 | Ernest Robinson | ||
| 1887 | Francis Cross | ||
| 1888 | Alfred Le Maitre | ||
| 1889 | Henry Tindall | ||
| 1890 | Thomas Pitman | ||
| 1891 | William Holmes | ||
| 1892 | William Holmes | ||
| 1893 | Edgar Bredin | ||
| 1894 | Edgar Bredin | ||
| 1895 | Edgar Bredin | ||
| 1896 | William King | ||
| 1897 | Albert Relf | ||
| 1898 | Albert Relf | ||
| 1899 | Alfred Tysoe | ||
| 1900 | Alfred Tysoe | ||
| 1901 | John Cleave | ||
| 1902 | Arthur Manning | ||
| 1903 | Bernard Blunden | ||
| 1904 | Herbert Workman | ||
| 1905 | Bernard Blunden | ||
| 1906 | Arthur Astley | ||
| 1907 | Ivo Fairbairn-Crawford | ||
| 1908 | Theodore Just | ||
| 1909 | Arthur Astley | ||
| 1910 | Eddie Owen | ||
| 1911 | NBA | ||
| 1912 | James Soutter | ||
| 1913 | C.H. Frisby | ||
| 1914 | Albert Hill | ||
| 1919 | Albert Hill | ||
| 1920 | Albert Hill | ||
| 1921 | Edgar Mountain | ||
| 1922 | Edgar Mountain | ||