4Q

4Q or 4q may 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

• Q4 (disambiguation)