Pe may refer to:
Linguistics and orthography Pe language Pe (Cyrillic), a letter (П) in the Cyrillic alphabet Pe (Semitic), a letter (פ ,ف, etc.) in several Semitic alphabets Pe (Persian), a letter (پ) in the Arabic alphabet Pe (Armenian), a letter (Պ պ) in the Armenian alphabet Pe (kana), in syllabic Japanese script
Mathematics, science, and technology Weierstrass p (also called "pe"), a mathematical letter (℘) used in Weierstrass's elliptic functions and power sets Péclet number (abbreviated "Pe."), a dimensionless number used in diffusion studies in hydrogeology and physical chemistry Pe (text editor), a text editor for BeOS Petlyakov, Russian aircraft design bureau Reduction potential (commonly abbreviated pe, or Eh), where, pe = –log [e–] = Eh (volt)/0.05916 (with 0.05916 = (RT/F) × ln10) according to Nernst equation
Places Pe (city), Ancient Egyptian city that merged into Buto Pe, Tibet, a town on the Yarlung Tsangpo River .pe, the Internet country code top-level domain (ccTLD) for Peru
See also PE (disambiguation) Pi (disambiguation) Pee (disambiguation)