Lazarus A.D. is an American thrash/groove metal band from Kenosha, Wisconsin, originally formed as "Lazarus" in 2005. The "A.D." was added to avoid potential legal issues. They released two studio albums in their career, The Onslaught (2007) and Black Rivers Flow (2011), and despite having never announced an official hiatus or disbandment, the band has been mostly inactive since drummer Ryan Shutler's death in 2015.