Barnaby Fitzpatrick (Irish: Brian Mac Giolla Phádraig), 7th Baron Upper Ossory, (d. 1696) was the eldest son, heir and successor of Barnaby Fitzpatrick, 6th Baron Upper Ossory by his wife Catherine Everard.
By her, he begot five children; four of whom tragically predeceased him: After Margaret's death, he remarried twice; first to another Margaret Butler, daughter and heiress to James Baron Dunboyne; and again to Dorothy Wagstaff.
Because the 7th Baron Upper Ossory sided with James II against William of Orange, he was outlawed by Dublin in 1690.
His nephew and successor, also named Barnaby Fitzpatrick (son of his brother John), commonly called the "8th Baron Upper Ossory", was disallowed from legally attaining the lordship of Upper Ossory on account of his uncle's automatic forfeiture.
In 1699, two other relatives, Richard and James Fitzpatrick, petitioned the King to be allowed to inherit the Ossory estates, provided that a pension be paid to Dorothy, the last Lady Ossory.