Robert Blakeney (1679 – 1 May 1733) was an Irish Member of Parliament.
He represented Athenry in the Irish House of Commons from 1721 to his death.
His son John Blakeney and grandsons Robert, John, Theophilus and William Blakeney were also MPs for Athenry. William Blakeney, 1st Baron Blakeney was a second cousin.