Nay

Nay or NAY may refer to:
 * Nay (name)
 * Ney (also nay, nye, nai), a wind instrument
 * Nay, Manche, a place in the Manche département of France
 * Nay, Pyrénées-Atlantiques, a place in the Pyrénées-Atlantiques département of France
 * Nay-ye Olya, a village in Khuzestan Province, Iran
 * Nay-ye Sofla, a village in Khuzestan Province, Iran
 * Nay, Iran, a village in Razavi Khorasan Province, Iran
 * Kalateh-ye Nay, a village in Razavi Khorasan Province, Iran
 * Ernst Wilhelm Nay, German abstract painter
 * an abbreviation for the Mexican state Nayarit
 * Beijing Nanyuan Airport, China; IATA airport code NAY
 * Newton Aycliffe railway station, England; National Rail station code NAY
 * An archaic form of no, used mainly in oral voting, and the opposite of yea