This is a list of High Sheriffs of Pembrokeshire. Under the Local Government Act 1888, an elected county council was set up to take over the functions of the Pembrokeshire Quarter Sessions. This, and the administrative county of Pembrokeshire were abolished in 1974 under the Local Government Act 1972, with Pembrokeshire forming two districts of the new county of Dyfed: South Pembrokeshire and Preseli.
The High Sheriff is the oldest secular office under the Crown. Formerly the High Sheriff was the principal law enforcement officer in the county but over the centuries most of the responsibilities associated with the post have been transferred elsewhere or are now defunct, so that its functions are now largely ceremonial. The High Sheriff is reappointed in March of each year.