TDO
TDO may refer to: TDO connector, the telephone plug used in Austria. The Delicious One, the mascot of the Wienerschnitzel restaurant Tryptophan 2,3-dioxygenase, an enzyme in the metabolism of tryptophan Tricho–dento–osseous syndrome, a rare genetic disorder affecting hair, teeth, and bones. Teen Dance Ordinance, a law in Seattle enacted after morality crusades against all-ages nightclubs.