Madd
MADD or Madd may refer to:
Mothers Against Drunk Driving, a nonprofit organization in the United States and Canada that seeks to stop drunk driving
Myoadenylate deaminase deficiency or Adenosine monophosphate deaminase deficiency type 1, a metabolic disorder
Multiple acyl-CoA dehydrogenase deficiency, another name for the genetic disorder Glutaric acidemia type 2
MADD (gene) or MAP kinase-activating death domain protein
Madd, the fruit of Saba senegalensis
Maladaptive Daydreaming Disorder (written MaDD)
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