John Ulysses Mobley (born October 10, 1973 in Chester, Pennsylvania) is a former American Football linebacker who played eight seasons for the Denver Broncos from 1996 through 2003 in the National Football League. Mobley was drafted in the first round of the 1996 NFL Draft by the Broncos after a college football career in Kutztown University. Mobley's best season was in 1997 when he had 132 tackles and four sacks and was an All-Pro that season. Mobley missed most of the 1999 season because of an injury.