Olivier is a given name which may refer to:
People:
- Olivier, Baron de Brandois (1870–1916), French Olympic sailor
- Olivier, Count of Penthièvre (died 1433), French noble
- Olivier Assayas (born 1955), French film director, screenwriter and film critic
- Olivier Berggruen (born 1963), German-American art historian
- Olivier Besancenot (born 1974), French politician and trade unionist
- Olivier Blanchard (born 1948), chief economist at the International Monetary Fund
- Olivier Brunel (c. 1552–1585), Flemish explorer
- Olivier Chastel (born 1964), Belgian government minister
- Olivier de Clisson (1336–1407), Breton soldier
- Olivier Coipel, French comic book artist
- Olivier Cresp (born 1955), French perfumer
- Olivier Dacourt (born 1974), French former footballer
- Olivier Dahan (born 1967), French director and screenwriter
- Olivier le Daim (c. 1428–1484), born Olivier de Neckere, Flemish valet to King Louis XI of France
- Olivier Dassault (1951–2021), French politician
- Olivier De Schutter (born 1968), Belgian legal scholar
- Olivier Debarre (born 1959), French mathematician
- Olivier Delaître (born 1967), French tennis player
- Olivier Deschacht (born 1981), Belgian footballer
- Olivier van Deuren (1666–1714), Dutch painter
- Olivier Doleuze (born 1972), French jockey
- Olivier Dubois (born 1972), French choreographer
- Olivier Ducastel (born 1962), French film director
- Olivier Elzer (born 1979), French chef
- Olivier Gendebien (1924–1998), Belgian racing driver
- Olivier Giroud (born 1986), French footballer
- Olivier Gourmet (born 1963), Belgian actor
- Olivier Grouillard (born 1958), French racing driver
- Olivier Hanlan (born 1993), Canadian basketball player
- Olivier Jacque (born 1973), French motorcycle racer
- Olivier Jean (born 1984), Canadian speed skater
- Olivier Kapo (born 1980), Côte d'Ivoire-born French footballer
- Olivier Latry (born 1962), French organist and improviser
- Olivier Le Jeune (died 1654), first recorded slave purchased in New France
- Olivier Le Peuch (born 1963/1964), French businessman, CEO of Schlumberger
- Olivier de la Marche (1425–1502), Burgundian courtier, soldier, chronicler and poet
- Olivier Levasseur (c. 1680–1730), French pirate
- Olivier Martinez (born 1966), French actor
- Olivier Megaton (born 1965), French film director, writer and editor born Olivier Fontana
- Olivier Messiaen (1908–1992), French composer, organist and ornithologist
- Olivier van Noort (1558–1627), Dutch merchant captain who circumnavigated the world in 1600-01
- Olivier Occéan (born 1981), Canadian soccer player
- Olivier Panis (born 1966), French Formula One driver
- Olivier Patience (born 1980), French tennis player
- Olivier Perrault (1773–1827), seigneur, lawyer, judge and political figure in Lower Canada
- Olivier Philippaerts (born 1993), Belgian show jumping rider
- Olivier Pla (born 1981), French racing driver
- Olivier Rochus (born 1981), Belgian tennis player
- Olivier Rolin (born 1947), French writer
- Olivier Roy (professor) (born 1949), French political scientist
- Olivier Sarkozy (born 1969), French banker, half-brother of Nicolas Sarkozy
- Olivier Schmutz (born 1971), Swiss judoka
- Olivier Schoenfelder (born 1977), French ice dancer
- Olivier Siegelaar (born 1986), Dutch rower
- Olivier Strebelle (1927–2017), Belgian sculptor
- Olivier Theyskens (born 1977), Belgian fashion designer
- Olivier Tielemans (born 1984), Dutch race car driver
- Olivier Vernon (born 1990), American football player
- Olivier Weber (born 1958), French writer, novelist and reporter
Fictional characters:
- Oliver (paladin) or Olivier, in the French epic The Song of Roland
- Olivier (comics), a demonic villain and enemy of the Punisher in Marvel Comics
- Olivier Armstrong, in the Japanese manga series Fullmetal Alchemist
- Oliver B. Bumble, Olivier B. Bommel in Dutch, protagonist in the Dutch comic book series Tom Puss