Ostin

Ostin is primarily considered an English surname that has been adopted as a given name. It is a variant of Austin, which itself is a contracted form of Augustine. The name Augustine comes from the Roman cognomen Augustinus, derived from Augustus. Augustus was an honorific title meaning 'great, magnificent, or venerable' bestowed upon the first Roman emperor, Gaius Octavius, and subsequently used by his successors.

The transition from a surname to a given name is a common linguistic phenomenon in English-speaking cultures. While Austin gained significant popularity, Ostin remains a less common, though related, variant. Its usage as a first name is relatively modern compared to its longer-established forms.