The left back has followed ex-Ingolstadt team-mate Pascal Gross and Mathew Ryan in joining the new Premier League club
Brighton and Hove Albion have signed defender Markus Suttner from Ingolstadt for an undisclosed fee.
The 30-year-old left-back has signed a three-year contract with the Premier League newcomers after completing a medical in Austria, where the first team are based for a pre-season training camp.
The Austria international, who trained with his new team-mates for the first time on Thursday, is Brighton's third signing of the transfer window following the arrivals of goalkeeper Mathew Ryan and midfielder Pascal Gross, who also joined from Ingolstadt.