Sir John Rogerson (1648–1724) was an Irish politician, wealthy merchant and property developer.
Very little is known about his family background or his early life, except that he was born in the Dutch Republic in 1648, and that his father was named Francis.
How precisely he made his money is not clear, but there is no doubt that he became a very rich man, with a reputation for being "hard-nosed" in his business dealings.
In 1713 Dublin Corporation leased him lands by the River Liffey, on condition that he build a quay there.
By his first wife he was the father of John Rogerson (1676-1741), Lord Chief Justice of the King's Bench in Ireland, and two younger sons, Richard, who was a barrister of the Middle Temple, and William (died 1721), who married Alice Molyneux, daughter of the leading physician Sir Thomas Molyneux, 1st Baronet and his second wife Catherine Howard.