Dudley Colley (ca. 1621 – July 1674) was an Irish Member of Parliament.
He was the son of Sir Henry Colley (ca. 1585-1637) and Anne Peyton.
He represented Philipstown in the Irish House of Commons during the Parliament of Charles II.
By his marriage to Anne Warren he was father of Henry Colley and grandfather of Henry Colley, Garret Wesley, and Richard Wesley, 1st Baron Mornington, all of whom also sat in the Irish House of Commons.: he was the great-great-grandfather of Arthur Wellesley, 1st Duke of Wellington.