Lucius Cornelius Pastor Vincens (65 BCE - CE 25), better known to his contemporaries as Vincens, Cornelius Vincens or Pastor Vincens, was a Roman consul and general in the Late Republic and Early Empire.

Lucius was born Lucius Octavius Pastor, from the Octavii Pastores, a distant related family of the Octavii Rufi which the future emperor Caesar Augustus (then known as Gaius Octavius Rufus Thurinus) came from. His father with the same name was a municipal magistrate at their hometown Sicily in 70s BCE. His paternal grandfather was Titus Octavius Pastor, a minor figure in the reforms of his more famous fellow Sicilian resident, Titus Caecilius Metellus. His paternal ancestors include Lucius Octavius Pastor, a shepherd who lived in Sicily and gave the ancient Roman king Ancus Marcius his hiding place while the latter was followed by a group of bandits. His mother was Marca Caecilia Metella, a niece of Titus Caecilius Metellus through her father Gaius Caecilius Metellus, Titus' younger brother.

Octavius was adopted as Servius Cornelius Scipio Pastor by another Metellan partisan, Servius Cornelius Scipio Caelicus Maximus, who gained his agnomen after his victory against the Reso-Caelians.