James C. Welsh (1880-1954) was a Scottish Labour Party politician who served as a Member of Parliament (MP) from 1922 to 1931, and from 1935 to 1945. He unsuccessfully contested the 1918 general election in the Lanark constituency. At the 1922 general election, he was elected as MP for Coatbridge constituency, where he was re-elected in 1923, 1924 and 1929, but was defeated at the 1931 general election by the Conservative Party candidate William Paterson Templeton. He was returned to the House of Commons at the 1935 general election as MP for Bothwell, and held the seat until he stepped down at the 1945 general election. He was the author of The Underworld: The Story of Robert Sinclair, Miner (1920).