PH (disambiguation)

pH is a measure of acidity or alkalinity.

PH, ph, pH, and Ph may also refer to:

Arts and media

Parker-Hannifin Corporation (stock ticker PH)
Pakatan Harapan (also known as "Alliance of Hope"), a political coalition in Malaysia
Pizza Hut, a pizza restaurant chain

Phenyl group, either -Ph or Φ, highly-stable and aromatic hydrocarbon unit found in many organic compounds
Pleckstrin homology domain, a part of many proteins which bind phosphoinositides with high affinity

.ph, the Philippines' Internet country code top-level domain
Ph protocol, an early web database search for CCSO Nameserver described by RFC 2378
PH (complexity), the union of all complexity classes in the polynomial hierarchy in computational complexity theory

Planet Hunters, a group that hunts for exoplanets
Precipitation hardening, a heat treatment technique used to increase the yield strength of malleable materials
Pulmonary hypertension, a medical condition

pʰ, a phoneme
Ph (digraph), a common digraph that represents the phoneme /f/ (voiceless labiodental fricative) in phonetics
PH, abbreviation for professional hunter used in East and Southern Africa
(ph), a notation used in transcripts to indicate that the transcriber does not know the spelling, usually of a name, and has spelled it as it was pronounced (phonetically)
pH Care, a feminine hygiene brand in the Philippines owned by UL Skin Sciences, Inc., a subsidiary of Unilab
PH (footballer) (born 1991), Brazilian footballer Philippe Guimarães
Poul Henningsen (1894–1967), Danish writer and designer known in Denmark as PH
Professional hunter
Public house, most commonly referred to as pub, an establishment licensed to serve alcoholic drinks
Purple Heart, a US military award, in post-nominal designation
Pinch hitter, in baseball
abbreviation used to denote the English regnal years of Philip II of Spain
P^ḥ, abbreviation (e.g. on maps) for parish, also in the meaning of civil parish
Phillips, a type of cross-head screw drive bits
ⲣⲏ, Coptic for the Egyptian deity Ra