Pi (Π, π) is the sixteenth letter of the Greek alphabet.

Quick Scoop

  • Name: Pi (uppercase Π, lowercase π).
  • Alphabet position: 16th out of 24 Greek letters.
  • Sound: Pronounced like the English “p” (as in “pizza”).
  • Extra nerdy fact: In the ancient Greek numeral system, pi had the value 80.

If you were listing the Greek alphabet in order, pi would come after omicron and before rho.

TL;DR: When you ask “what letter is pi in the Greek alphabet,” the answer is: it’s the 16th letter, written Π (capital) and π (lowercase), sounding like “p.”

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