John Roberts (16 October 1880 – 29 July 1959) was a Welsh Presbyterian Church of Wales minister and historian.
He was educated at the grammar school in Bala where his contemporaries included Robert Thomas Jenkins.
He was then married in 1903 and was ordained as a minister in the Presbyterian Church of Wales in 1905, serving first in Aberdyfi before moving to Liverpool in 1906 and Cardiff in 1913.
Whilst in Cardiff, he was heavily involved in fundraising for the church, and eventually resigned in 1938 to become the full-time secretary of the Sustentation Fund for South Wales, later of the Fund for the whole denomination, in which capacity he ensured that the church and its ministers were on a firmer financial basis than before.
He also campaigned at a national level on behalf of the people of south Wales, leading a group to London in 1932 to see the Prime Minister Stanley Baldwin about the poverty of the valleys.