P, the New Zealand street name for pure methamphetamine.

P, the symbol for the chemical element phosphorus

p is the usual symbol for momentum

<p> is the HTML element to mark the beginning of paragraphs.

P is used as an emoticon in the form of :P

P (complexity), computational complexity theory

p-value of a given result in an experiment is the result's statistical significance; the probability of observing this result or a more extreme result, by chance alone.

Haplogroup P (Y-DNA), a Y-chromosomal DNA (Y-DNA) haplogroup.

P, the author of the Hellenica Oxyrhynchia

P (or p) is sometimes confused with rho, the seventeenth letter of the Greek Alphabet, or is used as a substitute when the correct character is not available.

P-type semiconductor

P (band), an American rock band

Haplogroup P (mtDNA), a human mitochondrial DNA (mtDNA) haplogroup.

P is the sixteenth letter of the Latin alphabet. It may also refer to:

A • B • C • D • E • F • G • H • I • J • K • L • M • N • O • P • Q • R • S • T • U • V • W • X • Y • Z