The Dorset Senior Cup is a knockout cup competition involving association football teams from the county of Dorset, England, affiliated with the Dorset County Football Association.

The current holders of the Dorset Senior Cup are Hamworthy Recreation who beat Shaftesbury 3-1 in the final on 30 April 2024 at the Cockrams ground in Shaftesbury.

The competition is open to all affiliated clubs at step 7 and above of the national league system.

[1] The county FA headquarters is located at the County Ground in Hamworthy near Poole.

A total of 12 teams competed for the 2023–24 season.