XOR (disambiguation)

XOR is a logical operator whose negation is the logical biconditional.

XOR may also refer to:
 * XOR cipher, an encryption algorithm
 * XOR gate, a digital logic gate
 * bitwise XOR, an operator used in computer programming
 * XOR (video game), a 1987 puzzle video game
 * XOR, an x200 instruction
 * Xor DDoS, a Linux Trojan malware
 * XOR Corporation, a video game publisher and developer
 * XOR, a character from Ultimate Custom Night