There have been two Calder Baronetcies. The Calder Baronetcy, of Muirton in the County of Moray, was created in the Baronetage of Nova Scotia on 5 November 1686 for James Calder. The baronetcy became either extinct or dormant on the death of the sixth baronet, William Henry Walsingham Calder, in 1887. The Calder Baronetcy, of Southwick in the County of Southampton, was created in the Baronetage of Great Britain on 22 August 1798 for Captain Sir Robert Calder, third son of the third Baronet of the 1686 creation. It became extinct on his death in 1818.