The Stewart, later Shaw-Stewart Baronetcy, of Greenock and Blackhall in the County of Renfrew, is a title in the Baronetage of Nova Scotia.
[2] This family is descended in the direct male line from Sir John Stewart, illegitimate son of Robert III of Scotland, who granted him the estate of Ardgowan in Renfrewshire.
The fourth Baronet succeeded to the Greenock estates on the death of his great-uncle Sir John Shaw of Greenock, 3rd and last Baronet, in 1752 and assumed the additional surname of Shaw.
Lucinda, Lady Shaw Stewart, widow of the eleventh Baronet, has been Trustee of the Royal Collection Trust since 2005.
Other notable family members include John Shaw Stewart FRSE (1793–1840) Sheriff of Stirlingshire, and Major General John Heron Maxwell Shaw-Stewart FRSE FRGS (1831–1908), a military engineer in India and nephew of the 6th baronet.