MTHA

AcronymDefinition
MTHAMetropolitan Toronto Housing Authority (Canada)
MTHAMerthyr Tydfil Housing Association (UK)
MTHAManitoba Transit Heritage Association (est. 1990; Canada)
MTHAMassachusetts Treasure Hunting Association (est. 1981)
MTHAMaryland Thoroughbred Horsemen's Association, Inc.
MTHAMackinaw Trail Health Associates (Cadillac, MI)