Bodmin Jail (alternatively Bodmin Gaol) is a historic former prison situated in Bodmin, on the edge of Bodmin Moor in Cornwall. Built in 1779 and closed in 1927, a large range of buildings fell into ruin, but parts of the prison have been turned into a tourist attraction, and more recently another large part was converted into a hotel.

Bodmin Gaol was designed by Sir John Call and built in 1779 by prisoners of war, and was operational for 150 years, in which it saw over 50 public hangings. It was the first British prison to hold prisoners in individual cells.

The jail closed in 1927. Since that date, there has been no prison within the county of Cornwall.

During the latter part of World War I, the prison was used for holding some of Britain's "State Papers and Records" including the Domesday Book. The material was in the jail in 1918-1919.

Bodmin Jail is now a hotel as of 2021 and after redevelopment that started in 2015, Bodmin Jail Limited now operates as a museum, gift shop and hosts guided tours at the site.

A number of guided tours take place at the jail, including a heritage tour, paranormal walk, and self-guided tour. The attraction includes original jail cells, an administration block, and a recreation of Bodmin Moor located where the old hospital wing used to be.

The paranormal tours include a ghost-hunting experience, where guests can use tools such as ouija boards to attempt to communicate with spirits.

Bodmin Jail has inspired many ghost stories, attracted paranormal researchers, and ghost walk events are held for tourists there.