Austie is of American origin, derived from the English surname Austen, which itself originated from the Old French name Aostein. This name was brought to England by the Normans after the Norman Conquest in 1066. Austie means 'noble' or 'august', and it has been used as a given name since the late 20th century.
"From 1895 to 1899, there were ten babies named Austie."