Sir Geoffrey de Mowbray[a] (died 1300), Justiciar of Lothian, Baron of Dalmeny, Lord of Barnbougle and Inverkeithing was a 13th-14th century Scottish noble.
Mowbray was appointed at the Scone parliament of 2 April 1286, together with the bishop of Brechin, the abbot of Jedburgh to seek out King Edward I of England in Gascony and ask for his advice and protection and liberty of Penrith.
[1] He was one of the sealers of Treaty of Birgham, intended to secure the independence of Scotland after the death of King Alexander III and the accession of his granddaughter Margaret in 1286.
[4] On 25 September 1298, his Scottish lands were forfeited and granted by Edward I to Guy de Beauchamp, Earl of Warwick for taking arms against the King of England.
Geoffrey married the second daughter of John I Comyn, Lord of Badenoch and his wife Alice, they are known to have had the following known issue: