Thomas Cobbe (1733–1814), of the Newbridge Demesne in north County Dublin, was an Irish politician.
His mother, Dorothea Levinge, a daughter of Sir Richard Levinge, 1st Baronet, died during childbirth, and his father was the Most Reverend Charles Cobbe, Archbishop of Dublin.
Before his parents marriage, his mother was the widow of Sir John Rawdon, of Moira, County Down, with whom she had two sons: John, later Earl of Moira, and Arthur Rawdon.
From his parents marriage, he had an elder brother, Charles Cobbe, who died in 1750.
[2] In 1751, Cobbe married Lady Eliza Beresford (1736–1806), a younger daughter of Marcus Beresford, 1st Earl of Tyrone, and Lady Catherine Power, suo jure Baroness La Poer.