Gilbert Middleton (died 1318) was an English knight with lands in Northumberland who rebelled and was executed for treason.
[1] By 1313, Gilbert was a knight of the royal household in the garrison at Berwick Castle.
[1] Gilbert was joined in rebellion by fellow household knights John de Lilburne, Walter Selby and Goscelin d'Eyville.
The rebels extorted 500 marks from the bishopric of Durham for an alleged "transgression committed against" Gilbert.
[3] Gilbert was sent by sea to London, where he was tried before the king for treason on 26 January 1318.