What is the c on the nfl uniforms?

Answer 1

The 'C' on a player's uniform denotes that the player is one of the captains of the team.

It also depends on what year the jersey is from. Champion used to make NFL jerseys - the C is their logo. The NFL has since switched to Reebok - maybe a season or two ago?

The "C" stands for "captain," and each captain is elected for a one-year term to be a captain. Not all captains have the "C" on their jersey, however, making it a little confusing. That's because a maximum of six players per team can wear the patch on their jerseys, and some teams like the Patriots for example have more than six (New England has seven and Tom Brady is actually the one who doesn't wear the patch). The four stars underneath each "C" logo represent are each filled in for every year a player fulfills his duties as captain, but they are not retroactive, so no one in the league actually had more than one star under his "C" during the 2007 season (when this started).

It really means Cheerleader.