Robert Ker

• Robert Ker, 1st Earl of Roxburghe, Scottish nobleman
• Robert Ker of Kersland, Scottish Covenanter
• Robert Ker, 3rd Earl of Roxburghe, Scottish nobleman
• Robert Ker, 4th Earl of Roxburghe, Scottish nobleman
• Robert Ker, 2nd Duke of Roxburghe , Scottish nobleman
• Robert Ker , auditor general of the Colony and then the Province of British Columbia