'Drest' (
Scottish Gaelic: ''Drust'') was king of the
Picts from before 845 until 848, a rival of
Cináed mac Ailpín. According to the
Pictish Chronicle, he was the son of
Uurad.
The myth of
MacAlpin's Treason was attached to a king named Drest, and it may be this king who is intended.