William Yonge

William Yonge or Young (died c. 1437) was an Irish cleric and judge, who held office as Lord Chancellor of Ireland.

He was appointed Archdeacon of Meath and parson of the parish of St. Columba's, Kells, which was attached to the Archdeaconry, in 1412. In 1415 the Crown pardoned him for any illegal intrusions he had made into the lands attached to St. Columba's, and granted to him and to all his successors as Archdeacon the right to hold the lands in question quietly and without disturbance. In the same year John Young, presumably a close relative of William, was granted certain lands in County Meath formerly held by him. William was also a relative (possibly a brother) of James Yong (died c.1425), the political writer and staunch supporter of James Butler, 4th Earl of Ormonde. Whether William was related to Thomas Yong, Prior of Mullingar in the 1430s, is unclear. His tenure as Lord Chancellor seems to have been brief.

In 1430 the Crown granted him custody of the manor of Portlester in Meath during the minority of the heir, Richard, Duke of York. In 1435 he objected to the appointment of Robert Dyke, Archdeacon of Dublin, as rector of St. Patrick's Church, Trim, County Meath (now Trim Cathedral). Yonge had his own candidate, John Ardagh, one of his chaplains, but the Crown preferred Dyke, who had an exceptionally long and distinguished career as a public servant, culminating in his appointment as Lord Treasurer of Ireland in 1444.

Yonge's date of death is generally agreed to have been 1437.