Look up PH or pH in Wiktionary, the free dictionary.

PH, ph, pH, and Ph are initialisms or other abbreviations that may refer to:

[edit] Entertainment

• Paradise Hotel, a Fox reality show
• Player's Handbook, a book of rules for the fantasy role-playing game Dungeons & Dragons
• Plundered Hearts, an interactive fiction computer game
• The Legend of Zelda: Phantom Hourglass, a video game

[edit] Sciences

• pH, a measure of acidity in chemistry
• picohenry, an SI Unit of electrical inductance
• PH (complexity), the union of all complexity classes in the polynomial hierarchy in computational complexity theory
• -Ph, a phenyl ring in organic chemistry
• ph or phot, a measurement of illuminance (photometry)
• Pleckstrin homology domain, a part of many proteins which bind phosphoinositides with high affinity
• Pulmonary hypertension, a medical condition

[edit] Other

• Ph (digraph), a common digraph that represents the phoneme /f/ (voiceless labiodental fricative) in phonetics
• Pyramid Head, an enemy in the Silent Hill series
• Ph is an old name service protocol described by RFC 2378
• Pizza Hut
• Planet Hope
• PH, the Philippines' ISO country code
• .ph, the Philippines' Internet country code top-level domain
• PH (Papa, Hotel), Aircraft Registration prefix for The Netherlands
• phi (letter), the Greek letter (φ)
• Polynesian Airlines' IATA airline designator
• Ph.D, Philosophiæ Doctor (Latin)
• Colégio pH, a Brazilian school in Rio de Janeiro, RJ
• Poul Henningsen Danish writer and designer.
• Paul Harris school, Venezuelan bilingual school in Caracas
• PH connector, a connector between cables and printed circuit boards
• Partido Humanista, "Humanist Party" in Spanish

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