The Dewey Baronetcy, of South Hill Wood in Bromley, in the County of Kent, is a title in the Baronetage of the United Kingdom. It was created on 20 February 1917 for Thomas Charles Dewey, President of the Prudential Assurance Company. The second Baronet was a clergyman and served as Prebendary of Exeter Cathedral from 1935 to 1943. He was also Sheriff of Devon in 1935.
The heir apparent is Thomas Andrew Dewey (born 1982).
| Escutcheon: | Quarterly 1st & 4th per fess Sable and Or three cinquefoils within two barrulets between three dragons' heads erased counterchanged in each of their mouths a sword in bend Proper pommel and hilt of the second (Dewey) 2nd & 3rd Savle a griffin segreant Ermine armed Or the wings erminois a bordure compony Argent and Gules (Ballard). |
| Crest: | A dragon's head erased Sable holding in the mouth a sword in bend Proper pommel and hilt Or between two dragons' wings of the last on each a bend of the first charged with a cinquefoil of the third. |
| Motto: | Vir Sapiens Fortis Est[1] |