EC

EC may refer to:

• East Campus, an MIT dorm that several MIT Mystery Hunt teams are based in, including ✈✈✈ Galactic Trendsetters ✈✈✈ and Team Blank Space (2024)
• The East Campus round of the Students round of MIT Mystery Hunt 2021
• The naming gimmick used by r/PictureGame teams as well as individual members
• EC Puzzle Hunt, a puzzle hunt franchise also run by r/PictureGame