SMAD

SMAD may refer to:
 * Soviet Military Administration in Germany, government of the Soviet occupation zone of Germany from May 1945 to October 1949
 * Solvated metal atom dispersion, a method of producing nanoparticles
 * SMAD (protein), proteins involved in cell signaling
 * I-SMAD, inhibitory SMAD proteins
 * R-SMAD, receptor regulated SMAD proteins
 * Smad, Syria, a village in southern Syria