DHP may refer to: Damascus–Hama and Extensions (Damas-Hamah et Prolongements), a former Lebanese railway line Sika Club Beirut, also known as D.H.P., a former association football club in Lebanon Dark Horse Presents, a former anthology comic-book by Dark Horse Comics David Hyde Pierce, an American actor, best known for his role on Frasier Defense Health Program, the enterprise within the United States Department of Defense that provides health care German-Hanoverian Party (Deutsch-Hannoversche Partei), a defunct political party of Germany Revolutionary People's Party (disambiguation), political parties in Turkey Dhammapada, a versified Buddhist scripture Diffie–Hellman problem, a problem in cryptography Dihydropyran, a chemical used in organic synthesis Dihydropyridine, a chemical used in pharmacology Discretionary Housing Payment, a discretionary housing-cost benefit in the UK Dunman High Programme, an Integrated Programme offered in Dunman High School, Singapore Cav1.1, calcium channel, a voltage-dependent, L type, alpha 1S subunit Damascus–Hama Railway (), a Franco-Ottoman railway in Syria