The Scottish Prison Service (SPS) (Scottish Gaelic: Seirbheis Phrìosain na h-Alba) is an executive agency of the Scottish Government tasked with managing prisons and Young Offender Institutions.

The Chief Executive of the Scottish Prison Service, currently Teresa Medhurst, is responsible for its administration and reports to the Cabinet Secretary for Justice, who is responsible for the Scottish Prison Service within the Scottish Government.

There are fifteen prison establishments in the country, one of which is privately managed. The SPS employs over 4,000 staff, with its headquarters in One Lochside, located in South Gyle, Edinburgh.

Teresa Medhurst is Chief Executive of the SPS. She is responsible to Scottish Ministers for the management, performance and future development of SPS. Responsibility for all operational matters is delegated to the Chief Executive by the Director General (Education and Justice).

She is supported by Deputy Chief Executive Linda Pollock.

SPS operates a four directorate model. Each directorate is headed by an Executive Director who are members of both the SPS Advisory Board and the SPS Executive Management Group.

Directors

HMP Addiewell is privately managed under contract to the SPS.