Ollivant is a surname, and may refer to:
Alfred Ollivant (bishop) (1798–1882), academic and bishop of Llandaff Alfred Ollivant (writer) (1874–1927), English novelist Alfred Ollivant (cricketer) (1839–1906), English cricketer Charles Ollivant (1846 - at least 1902), senior member of the Indian Civil Service Douglas Ollivant (born 1967), American academic and military adviser
See also Ollivant Point, the westernmost point of Saunders Island, South Sandwich Islands