Pope Adrian or Pope Hadrian may refer to:

Lullus became the first regular archbishop of Mainz when Pope Hadrian I granted him the pallium in about 781.

The king's envoys laid the blame for the problems encountered with the Lichfield archdiocese on Pope Hadrian I's incompetence.

He was condemned in the third letter of Pope Hadrian I for adoptionism sometime between 785 and 791 (probably 786).

Pope Leo I restored it around 460, and it was again restored by Pope Hadrian.

However, Pope Hadrian I did write favourably of the canons of this council.

All three works followed Pope Hadrian's early characterization of the Adoptionist position as Nestorian.

In 785-786 Pope Hadrian I sent some Roman chants to the court of Charlemagne.

In 772, Pope Hadrian I expelled all the Lombard officials from the papal curia.

The first records appear in the library of Pope Hadrian IV in 1155.