Robert Ker (disambiguation)

Robert Ker may refer to:


 * Robert Ker, 1st Earl of Roxburghe (1570? – 1650)
 * Robert Ker (1634–1680) Scots Worthy, Robert Ker of Kersland
 * Robert Ker, 3rd Earl of Roxburghe (c. 1658–1682)
 * Robert Ker, 4th Earl of Roxburghe (c. 1677–1696)
 * Robert Ker, 2nd Duke of Roxburghe (c.  1709–1755)
 * Robert Ker (1824–1879), first Auditor General of the Colony and then the Province of British Columbia