NPH
- Fujicolor Pro
- Hmong language
- NPH insulin
- National Party of Honduras
- National Pediatric Hospital, Cambodia
- Negative pH (band)
- Neil Patrick Harris
- New Phyrexia
- Normal pressure hydrocephalus
- North Providence High School
- Northeast Party House
- Northwestern Publishing House
- Nuestros Pequeños Hermanos
- Nyiakeng Puachue Hmong
- Wisconsin Evangelical Lutheran Synod