| Isaiah Kacyvenski LB, Seattle Seahawks |
| Dave Kadela T, Atlanta Falcons |
| Kevin Kaesviharn CB, Cincinnati Bengals |
| Ndukwe Kalu DE, Philadelphia Eagles |
| John Kasay K, Carolina Panthers |
| Kevin Kasper WR, Denver Broncos |
| Andy Katzenmoyer LB, New England Patriots |
| Jevon Kearse DE, Tennessee Titans |
| Michael Keathley T, San Diego Chargers |
| Curtis Keaton RB, Cincinnati Bengals |
| John Keith DB, San Francisco 49ers |
| Ben Kelly DB, New England Patriots |
| Brian Kelly CB, Tampa Bay Buccaneers |
| Eric Kelly CB, Minnesota Vikings |
| Jeff Kelly LB, Atlanta Falcons |
| Lewis Kelly G, Minnesota Vikings |
| Maurice Kelly DB, Seattle Seahawks |
| Reggie Kelly TE, Atlanta Falcons |
| Pete Kendall G, Arizona Cardinals |
| Kenoy Kennedy SS, Denver Broncos |
| Lincoln Kennedy T, Oakland Raiders |
| Deontey Kenner QB, Baltimore Ravens |
| Eddie Kennison WR, Kansas City Chiefs |
| Patrick Kerney DE, Atlanta Falcons |
| Isaac Keys LB, Minnesota Vikings |
| Danny Kight K, Baltimore Ravens |
| Terry Killens LB, San Francisco 49ers |
| Cedric Killings DT, Carolina Panthers |
| Andre King WR, Cleveland Browns |
| Lamar King DE, Seattle Seahawks |
| Shaun King QB, Tampa Bay Buccaneers |
| Erron Kinney TE, Tennessee Titans |
| Charles Kirby RB, Tampa Bay Buccaneers |
| Terry Kirby RB, Oakland Raiders |
| Levon Kirkland MLB, Seattle Seahawks |
| Travis Kirschke DT, Detroit Lions |
| Desmond Kitchings WR, Indianapolis Colts |
| Jon Kitna QB, Cincinnati Bengals |
| Riley Kleinhesselink DE, New York Jets |
| Jimmy Kleinsasser FB, Minnesota Vikings |
| Adrian Klemm T, New England Patriots |
| Marcus Knight WR, Oakland Raiders |
| Roger Knight LB, New Orleans Saints |
| Sammy Knight SS, New Orleans Saints |
| Tom Knight CB, Arizona Cardinals |
| Micah Knorr P, Dallas Cowboys |
| Aaron Koch G, Jacksonville Jaguars |
| Kris Kocurek DT, Tennessee Titans |
| Ross Kolodziej DT, New York Giants |
| Rob Konrad FB, Miami Dolphins |
| Scott Kowalkowski LB, Detroit Lions |
| Brian Kozlowski TE, Atlanta Falcons |
| Dan Kreider RB, Pittsburgh Steelers |
| Olin Kreutz C, Chicago Bears |
| Clint Kriewaldt LB, Detroit Lions |
| Ryan Kuehl DT, Cleveland Browns |
| Brian Kuklick QB, New England Patriots |
| Justin Kurpeikis LB, Pittsburgh Steelers |
| Jason Kyle LB, Carolina Panthers |