The Halsey Baronetcy, of Gaddesden in the County of Hertford, is a title in the Baronetage of the United Kingdom. It was created on 22 June 1920 for the Conservative politician Frederick Halsey. The third Baronet was a Captain in the Royal Navy. The fourth Baronet is an Anglican priest.
Thomas Plumer Halsey, father of the first Baronet, was also a politician. Sir Lionel Halsey, fourth son of the first Baronet, was an Admiral in the Royal Navy.
The heir presumptive is the present holder's cousin Nicholas Guy Halsey (b. 1948).