Abbreviations beginning with o

OHPAOhio and Pennsylvania Railroad
Regional » Railroads

OHPAOhio and Pennsylvania Railroad Company
Regional » Railroads

OHPAOhio Horseshoe Pitchers Association
Sports

OHPAOlongapo Homing Pigeon Association
Sports

OHPAOregon Horseshoe Pitchers Association
Sports

OHPABOcala Historic Preservation Advisory Board
Miscellaneous

OHPACOregon Hospital Political Action Committee
Miscellaneous

OHPATOutpatient and Home Parenteral Antibiotic Therapy
Academic & Science

OHPATOutpatient or Home Parenteral Antimicrobial Therapy
Academic & Science

OHPCOrissa Hydro Power Corporation Ltd. (India)
Business

OHPCOttawa High Performance Centre (Canada)
Business

OHPCOskaloosa Historic Preservation Commission (Oskaloosa, IA)
Miscellaneous

OHPCOOhio Hospice and Palliative Care Organization
Community » Non-Profit Organizations

OHPDOntario Heritage Properties Database (searchable database of government-protected, architectural-heritage properties)
Academic & Science

OHPDOral Health and Preventive Dentistry (journal)
Academic & Science

OHPDOh planning+design (architecture firm; Portland, Oregon)
Business

OHPDOffice of Housing, Planning and Development (Tennessee Department of Mental Health and Development Disabilities)
Governmental

OHPDOak Hill Police Department
Miscellaneous

OHPDObsessive Harry Potter Disorder
Miscellaneous

OHPEOntario Health Promotion Email (Canada)
Academic & Science