Domitia Longina (c. CE 53 – c. CE 130) is an Empress of Rome and wife to the Roman Emperor Domitian.

She is the youngest daughter of the general and consul Gnaeus Domitius Corbulo.

Domitia divorces her first husband Lucius Aelius Lamia in order to marry Domitian in 71.

The marriage produces only one son, whose early death is believed to have been the cause of temporary rift between Domitia and her husband in 83.

She becomse Empress of Rome upon Domitian's accession in 81, and remains so until his assassination in 96.

She is believed to have died sometime between 126 and 130.