Baron Merrivale, of Walkhampton in the County of Devon, is a title in the Peerage of the United Kingdom. It was created on 19 January 1925 for the Conservative politician and judge of the High Court of Justice, Sir Henry Duke. the title is held by his great-grandson, the fourth Baron, who succeeded his father in 2007.
The heir apparent is the present holder's son Hon. Thomas Duke.
| Motto: | Gradatum Vincimus (We conquer by degrees)[1] |
| Escutcheon: | "Argent, an anchor fouled sable between three chaplets, all within a bordure engrailed azure." |
| Crest: | "Issuant from a chaplet fessewise argent a demi-griffin holding between the claws a fasces erect or." |
| Supporters: | "On either side a griffin or, the dexter gorged with a chain sable, pendant therefrom an escutcheon argent charged with a saltire between four castles sable, and the sinister gorged with a like chain suspended therefrom an escutcheon per pale gules and sable, charged with a triple towered castle or." |