John William Henry Tyler Douglas (3 September 1882 – 19 December 1930) was an English cricketer who was active in the early decades of the twentieth century. Douglas was an all-rounder who played for Essex County Cricket Club from 1901 to 1928 and captained the county from 1911 to 1928. He also played for England and captained the England team both before and after the First World War with markedly different success. As well as playing cricket, Douglas was a notable amateur boxer who won the middleweight gold medal at the 1908 Olympic Games.