Publius Coelius Balbinus Vibullius Pius was a Roman senator active during the first half of the second century AD.
[2] The cursus honorum of Balbinus up to his consulate is known from an inscription reported from Rome.
He served as sevir equitum Romanorum, then was military tribune with the Legio XXII Primigenia, then stationed in Germania Superior at Mogontiacum.
Once he had returned from his posting on the Rhine frontier, Balbinus would have become a quaestor, which would have enrolled him in the Roman Senate, but instead the emperor Hadrian first adlected him into the Patrician class; if the order of the offices he held on the inscription reflects the order of the offices he held, both this, and his admission to the salii Collinus also came before he was quaestor to emperor Hadrian.
The only consular post Balbinus is known to have held was governor of Dalmatia, according to Werner Eck's interpretation of an inscription found at Salona; Eck dates the period he held this posting simply as "after 137".