The actress will appear in one episode of the USA drama as Alexandra Leeds, TV Line reports.
Alexandra has a history with Harvey (Gabriel Macht) and causes him some problems when she returns to his life.
Coppola has also landed a recurring role in USA's new series Common Law, which stars Michael Ealy and Warren Cole as squabbling police officers who are sent to couple's counselling.
Coppola previously starred in Jericho and the British series Cold Feet. She has also appeared in shows including NCIS, Lie To Me, Detroit 1-8-7 and Castle, and currently has a recurring role in ABC Family's The Nine Lives of Chloe King.
Suits, which has featured guest stars such as Titus Welliver and Russell Hornsby, airs on Thursdays at 10/9c on USA.
Watch a trailer for the next episode of Suits below: