William John Davis CH (6 August 1848 – 20 October 1934) was a British trade unionist.
In 1869, he represented his local reform organisation at the Trades Union Congress.
He was also active in the local Liberal Party, and in 1876 was elected to the school board, then in 1880, he became the first Liberal-Labour member of Birmingham City Council.
[1] Davis worked with Alexander Wilkie and Robert Knight to found the General Federation of Trade Unions in 1899.
From 1906 to 1910, he published The British Trades Union Congress: History and Recollections.