4Q

4Q or 4q may also refer to:


 * 4Q, IATA code for Safi Airways
 * The fourth quarter of a calendar year
 * The fourth quarter of a fiscal year
 * A four-quadrant movie, which appeals to all four major demographic quadrants
 * The 4Q Mangrenade, a 2006 album by Driller Killer
 * A-4Q, a model of Douglas A-4  Skyhawk
 * 4Q, designation for one of the Qumran Caves
 * 4q, an arm of Chromosome 4 (human)
 * 4Q, the production code for the 1977 Doctor Who serial The Face of Evil