Anton Wilhelm Ertl (10 September 1654, Munich – c.1715) was a German lawyer and geographer.
He studied law at Ingolstadt, and from around 1680, worked as a lawyer in the Munich court. He also served as a judge in the jurisdictions of various monasteries in Bavaria (from 1682). In 1705 he received the title of imperial counsellor and was a lawyer of the imperial equestrian order in Suebia.
He was the author of: