As per the Patron Saint Index and other sources, 'Saint' Olivia (Olive) never existed. She was the central character in a pious story circulating in the early Church that was mistaken to be a biography. Her feast day has been stricken from the Calendar of Saints.
There's one in France
Philippe Olive died in 1981.
Olive Wheeler died in 1963.
Les Olive died in 2006.
Olive Wilton died in 1971.
Olive Wadham died in 2004.
Olive Wharry died in 1947.
Olive Dennis died in 1957.
Olive Cotton died in 2003.
James Olive died in 1942.
Olive Biller died in 1957.
Olive Fremstad died in 1951.