P&amp;O Scottish Ferries ran ferry services between the Scottish mainland and Orkney and Shetland from 1971 to 2002.
History.
P&amp;O took over the routes from the long-established North of Scotland, Orkney &amp; Shetland Steam Navigation Company in 1971. They branded their services "P&amp;O Ferries" from 1975 to 1989 and "P&amp;O Scottish Ferries" thereafter. 
The services were taken over by NorthLink Orkney and Shetland Ferries in 2002.
Services.
They sailed from Aberdeen to Stromness and Lerwick, and from Scrabster to Stromness.
In keeping with the tradition of the company which preceded them on the route, their vessels were (with one or two exceptions) named after saints, such as the "St Clair" and the "St Magnus".
Fleet.
At the end of operations in 2002, the company had four vessels covering the routes:
References.
Notes.
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Bibliography.
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