The Sectoids are a fictional race of extraterrestrial beings featuring in the DOS/Windows game series X-COM.

Sectoids are typically the first aliens the player encounters and among the easiest to kill. Sectoids are typically armed with standard alien weaponry and while Sectoid Soldiers have no special abilities, Sectoid Leaders and Sectoid Commanders can have psionic abilities. Sectoids are neither particularly resistant or vulnerable to any specific form of attack. When the player encounters Sectoids on Terror missions, base attacks or at large UFOs they are usually accompanied by at least one Cyberdisc.