Barbu Dimitrie Știrbei ([ˈbarbu diˈmitri.e ʃtirˈbej]), also written as Stirbey, (17 August 1799 – April 13, 1869), a member of the Bibescu boyar family, was a hospodar (Prince of Wallachia) on two occasions, between 1848 and 1853, and between 1854 and 1856.

After Grigore IV Ghica was removed from the throne, Știrbei was a candidate for the office in the only elections carried under the Regulations' provisions, but renounced his votes in favour of his brother, Gheorghe Bibescu.

After the 1848 Wallachian Revolutionary Government was overthrown by Ottoman troops, and a new hospodar was to be named, Sultan Abdülmecid I supported Barbu Știrbei for the office, and he was awarded the throne for a seven-year term (under the provisions of the 1849 Convention of Balta-Liman).

He took steps to enforce a (still very conservative) land reform, by passing a law, in 1851, in which the peasants were referred to as "tenants", and which allowed them to more easily move between boyar properties.

In the matter of Roma slavery, Știrbei began by limiting the internal trading in slaves, forbade the separation of families through the latter, and ultimately abolished the institution altogether.