Robert Sinclair

• Berwickshire (UK Parliament constituency)
• Bob Sinclar
• Bob St. Clair
• Bobby Sinclair
• Haddingtonshire (Parliament of Scotland constituency)
• Rob Sinclair (footballer, born 1974)
• Rob Sinclair (footballer, born 1989)
• Robert B. Sinclair
• Robert J. Sinclair
• Robert Sinclair (bishop)
• Robert Sinclair (locomotive engineer)
• Robert Sinclair, 1st Baron Sinclair of Cleeve
• Sinclair (surname)
• Sir Robert Sinclair, 1st Baronet
• Sir Robert Sinclair, 3rd Baronet, of Longformacus
• Sir Robert Sinclair, 3rd Baronet, of Stevenston
• Sir Robert Sinclair, 9th Baronet