MADD or Madd may refer to:
*
Mothers Against Drunk Driving
Mothers Against Drunk Driving (MADD) is a non-profit organization in the United States, Canada and Brazil that seeks to stop drunk driving, support those affected by drunk driving, prevent underage drinking, and strive for stricter impaired drivi ...
, 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
Maladaptive daydreaming, also called excessive daydreaming, is when an individual experiences excessive daydreaming that interferes with daily life. It is a proposed diagnosis of a disordered form of dissociative absorption associated with excessi ...
Disorder (written MaDD)
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