The future Hall-of-Fame tight end is in the midst of his best season in Atlanta, catching 79 passes for 867 yards and seven touchdowns heading into Sunday's regular season finale against Tampa Bay.
Gonzalez, who will turn 36 on February 27, is second on the NFL's all-time receptions list at 1,148, though he trails the great Jerry Rice by a significant amount. Rice caught 1,549 passes in his standout career.
"Very happy to be coming back next year to play. I love everything about the Falcons and the city of Atlanta," Tweeted Gonzalez, who spent the first 12 seasons of his 15-year career in Kansas City.
Gonzalez has missed just two games since being drafted by the Chiefs with the 13th overall pick in the 1997 draft, and has caught at least 59 passes every season after his rookie year.
He owns all the significant tight end records, including most career receiving yards (13,330), most receptions in a single season (102) and most touchdown catches (95).