John Owen Jones (1 January 1861 – 2 March 1899), commonly known by his pen name of Ap Ffarmwr ("farmer's son"), was a Welsh campaigning journalist.
Following his father's death, his mother remarried and the family moved to Dwyran, where he was educated at the local Board school.
He campaigned on behalf of agricultural labourers in north Wales, and his articles on the subject of their working conditions led to a conference at Llangefni on Easter Monday 1890, where agreement was reached with employers on a shorter working day.
Jones campaigned only on behalf of male employees, and female workers continued to have to work the longer hours.
[2] In 1893, labourers made a presentation to Jones in recognition of his efforts, and he was asked to lead them in forming a trade union.