Sanaullah, also spelled Thanaullah () is a male Muslim given name and surname, meaning praise of God. Notable people with the name include:
Qadi Thanaullah Panipati (died 1810), Early modern Northwestern Indian Islamic scholar Sanaullah Khan Niazi (born 1960), Pakistan Army general Sanaullah Baloch, Pakistani politician Rana Sanaullah Khan (born 1955), Pakistani lawyer Sanaullah Amritsari, British Indian Muslim scholar