No, Austin Butler does not have any children. He has neither birth nor adopted any child as his.
Butler has never been married. He has however been involved in multiple relationships.
Austin is currently in a relationship with Kaia Gerber. They have been dating since 2021.
Kaia and Austin announced their relationship in December 2021. They have been together since.
Before Kaia, Austin was involved in two known past relationships.
He was rumored to have been engaged to his ex-girlfriend, Vanessa Hudges. The rumors were however false. Austin and Vanessa date from 2011 to 2020.