NPH may refer to: Medicine NPH insulin, an intermediate-acting insulin National Pediatric Hospital, Cambodia, a government-run pediatric hospital in Phnom Penh Normal pressure hydrocephalus, a condition of excessive fluid in the brain Other Fujicolor Pro (previously NPH 400), a line of professional color negative films National Party of Honduras, a centre-right conservative political party in Honduras Neil Patrick Harris, American actor, singer, director and magician Negative pH (band), an Electronic music band New Phyrexia (expansion code: NPH), a Magic: the Gathering expansion set North Providence High School, a public high school in North Providence, Rhode Island Northwestern Publishing House, the official publishing house for the Wisconsin Evangelical Lutheran Synod Nuestros Pequeños Hermanos, a charity in Latin America that runs orphanages Nyiakeng Puachue Hmong, a writing system used for the Hmong language