| Abbreviation | Definition |
|---|---|
| HDO | Hispanic Democratic Organization |
| HDP | Harami Democratic party |
| HDP | Hope Democratic Party |
| HDTC | Hopkinton Democratic Town Committee |
| HDTV | Hanover Democratic Township Voters |
| HEPAC | Hearing Education Political Action Committee |
| HGPC | Houston GLBT Political Caucus |
| HIM | Hubris In Motion |
| HIPP | Hemispheric Institute of Performance and Politics |
| HLPAC | Higgins Lake Property Owners' Association Political Action Committee |
| HMS | Akhil Bharatiya Hindu Mahasabha |
| HNSP | Hungarian National Socialist Party |
| Hon. | honourable |
| HOPE | Hispanics Organized for Political Equality |
| HOPE | Honest, Orderly, and Peaceful Elections |
| HPR | Harvard Political Review |
| HPR | Harvard Political Review Harvard Political Review |
| HPSC | Hyde Park Socialist Club |
| HRC | Hindu Rate of Corruption |
| HRCC | House Republican Campaign Committee |