Elvis Dumervil had the most sacks in 2009, with 17 sacks.

most sacks 2009
Interpreted as:
most defensive sacks by a player 2009
2009Dumervil2009Allen2009Freeney2009Woodley2009Smith2009Cole2009Carter2009Orakpo2009Ware2009Peppers2009Banta-Cain2009Harrison2009Matthews2009Schobel2009Mathis2009Porter2009Williams2009Edwards2009Hali2009Odom2009Pace2009Parker2009Campbell17.014.513.513.513.012.511.011.011.010.510.010.010.010.09.59.09.08.58.58.08.08.07.0
NAMESEASONTMGPSCKTKLASTCOMBSCKYINTINT YDSINT TDFFFRFR TD
Elvis DumervilElvis Dumervil2009DENDEN1617.04274988.5000410
Jared AllenJared Allen2009MINMIN1614.54385197.51-40531
Dwight FreeneyDwight Freeney2009INDIND1413.51952495.5000100
LaMarr WoodleyLaMarr Woodley2009PITPIT1613.551116283.5000111
Will SmithWill Smith2009NONO1613.037124968.5100300
Trent ColeTrent Cole2009PHIPHI1612.548856116.5000200
Andre CarterAndre Carter2009WASWAS1611.048146262.5000300
Brian OrakpoBrian Orakpo2009WASWAS1611.037135083.5000100
DeMarcus WareDeMarcus Ware2009DALDAL1611.045125751000500
Julius PeppersJulius Peppers2009CARCAR1610.53664252.52131510
Tully Banta-CainTully Banta-Cain2009NENE1610.035205569.5000200
James HarrisonJames Harrison2009PITPIT1610.060197962000520
Clay MatthewsClay Matthews2009GBGB1610.037145163000131
Aaron SchobelAaron Schobel2009BUFBUF1610.0342256671261310
Robert MathisRobert Mathis2009INDIND149.524133757000500
Joey PorterJoey Porter2009MIAMIA149.03474146.5000110
Mario WilliamsMario Williams2009HOUHOU169.03854352000210
Ray EdwardsRay Edwards2009MINMIN168.54385153000110
Tamba HaliTamba Hali2009KCKC168.548156345.5000400
Antwan OdomAntwan Odom2009CINCIN68.01811951000000
Calvin PaceCalvin Pace2009NYJNYJ128.045105554000300
Juqua ParkerJuqua Parker2009PHIPHI168.03043460000200
Calais CampbellCalais Campbell2009ARIARI167.036114750.5000100
Darnell DockettDarnell Dockett2009ARIARI167.04295154130010
Greg EllisGreg Ellis2009OAKOAK147.02542936000220
StatMuse has season-level data for sacks going back to the 1982 season.