Bradda Head is a rugged headland overlooking Port Erin, a popular seaside village in the south-west of the Isle of Man, in the British Isles. Rising to a height of 382 feet (116 m) above sea level.

The headland and Milner's Tower are accessible via the Port Erin to Peel section of the Isle of Man coastal footpath, Raad ny Foillan, (Manx Gaelic for 'Way of the Gull'). Milner's Tower was built in 1871 in memory of William Milner of the then-famous Milner's Safe Co. Ltd., maker of fire-resistant safes and a local philanthropist. His tower is built in the shape of a key and lock (as viewed from above).

Views from Bradda Head include the Calf of Man to the south and the Mourne Mountains of Northern Ireland and the east coast of the Republic of Ireland to the west.

Most of Bradda Head's history relates to mining. There are several veins close to the surface and reaching several hundred fathoms into the headland and below sea level. Evidence exists of copper ore and lead being extracted from on and near the surface during the Bronze Age and further into the ground via shafts during the 13th century. By the early 1700s and into the 1800s shafts were being excavated deep horizontally and below sea level. Most access was via steep slopes or steps carved into the cliff faces. Remains of the Captain's house and pump house are low down the rock face on the southern face, visible from the sea. Mining continued until 1904.

There is an ancient cairn on nearby Bradda Hill. An ancient coin hoard was found at Bradda Head in 1848. Prior to the Second World War, there was a thriving fishing trade in scallops taken off Bradda Head.

On 16 May 2023, a privately-owned light aircraft crashed into the cliffside. The only casualty was the lone pilot.

The site is popular with walkers, photographers and artists, and the 1931 "Kodak World's Best Photograph" was made here. C.W. Powell won £4,000 for the picture. The pathways and headland make it a popular location for walkers, bird and sea life spotters. Due to rock falls and errosion, there are caves and tunnels under the headland that can be negotiated by kayakers, paddleboarders, freedivers and scuba divers.

• Photochrome colour photograph of the head, made between 1890 and 1900
• Milner's Tower Archived 17 November 2016 at the Wayback Machine
• Bradda Head Mines

54°05′33″N 4°46′40″W / 54.0924°N 4.7778°W / 54.0924; -4.7778