Nicholas Alexander Leendert Vlastuin (pronounced [fl?s t??n]; born 19 April 1994) is a professional Australian rules footballer playing for the Richmond Football Club in the Australian Football League (AFL).
He is a two-time premiership player with the club, winning in 2017 and 2019.
He plays as a hybrid defender, adept at directly defending small forwards, taking intercepting marks and rebounding from defensive 50.