The Spearman Baronetcy, of Hanwell in the County of Middlesex, is a title in the Baronetage of the United Kingdom. It was created on 28 April 1840 for Alexander Spearman, who was Comptroller General of the Exchequer and Secretary to the Commissioners for the Reduction of the National Debt for many years. The second Baronet was High Sheriff of Glamorganshire for 1882. Sir Alexander Spearman, son of Commander Alexander Young Crawshay Mainwaring Spearman (1862–1915), half-brother of the second Baronet, was a Conservative politician: his grandson Alexander Spearman (born 1984) married Brazilian Princess Amelia of Orléans-Braganza, daughter of Prince Antônio of Orléans-Braganza, descendants of the former Brazilian imperial family.
The heir apparent to the baronetcy is Alexander Axel Spearman (born 1999), only son of the 5th Baronet.