John Joseph Tinker (15 January 1875 – 30 July 1957) was a British Labour Party politician. Born in Little Hulton, Tinker began working at a coal mine at the age of ten. He became active in the Lancashire and Cheshire Miners' Federation, and became the union's full-time agent for the St Helens area in 1915. During his 22 years in the House of Commons, Joseph Tinker ensured that the safety of coal miners and their welfare became a key issue discussed, debated and acted upon. Against considerable opposition, he ensured that the dreadful working conditions of miners were improved.