James Coulthard (23 December 1868 – 1 January 1952) was a British rugby player, trade unionist and politician.
[5] From 1911, Coulthard was the secretary of the Birkenhead joint branches of the National Union of Railwaymen (NUR), and he also served on the union's Liverpool and North Wales Council, being its president in 1917/18.
He was also elected to the executive of the Birkenhead Trades and Labour Council.
[5] At the 1924 UK general election, he stood in Birkenhead East, taking 26.7% of the vote and third place.
At the 1929 UK general election, he stood again, improving to 31.8%, but remaining in third place.