Surname Sadm (Sadm 
, صادم 
) , around the globe, is a rare last name. The surname Sadm is habitual in Saudi Arabia, where it is a rare surname, Indonesia, where it is a very rare surname, and the United States, where it is an extremely rare surname. Measured by absolute frequency, it most frequently occurs in Indonesia, Saudi Arabia, and India. More frequently, Sadm is the forename as well as the last name.