Look up none in Wiktionary, the free dictionary.

None may refer to:

• Zero, the mathematical concept of the quantity "none"
• Empty set, the mathematical concept of the collection of things represented by "none"
• none, an indefinite pronoun in the English language

Music

• None (Meshuggah EP), 1994
• None (Cloak of Altering EP), 2013

Other uses

• None (liturgy), the ninth hour of the traditional Christian liturgy
• None, Piedmont, a commune in the province of Turin in the Italian region of Piedmont
• Irreligion, a lack of religious affiliation
• None of the above, a political expression for rejecting all available candidates
• None, the keyword for the null pointer in Python