Oliver St Clair

Oliver St Clair or Sinclair may refer to:

• Oliver St Clair, 12th Baron of Roslin (died 1523), Scottish noble
• Sir Oliver St Clair de Pitcairnis or Oliver Sinclair (died circa 1576), favourite courtier of James V of Scotland
• Olave Sinclair (died 1573), Scottish official in Orkney and Shetland
• Oliver Sinclair, character in '