Joseph William Foley (born 1821) was an Irish solicitor from Dún Laoghaire, County Dublin who briefly became a nationalist politician. His father William was from New Ross in County Wexford, and his mother Elizabeth Crawford was from Northumberland. He was educated at St Cuthbert's College in County Durham, and became a solicitor in 1841.He was also a justice of the peace for County Dublin.In 1865 he married Julia Cram, from Crofthouse in Northumberland.