Bartholomew Walsh (1890 – 13 December 1959) was a Welsh trade unionist. Born in the Rhondda, Walsh began working at a colliery and joined the South Wales Miners' Federation (SWMF) in 1904. In 1929, he was promoted to a more senior role at his workplace, and so left the SWMF, joining the National Association of Colliery Overmen, Deputies and Shotfirers (NACODS).