Other football leagues in 1968:    
AFL
The AFL and the NFL champions faced each other in Super Bowl III at the end of the season to determine an overall champion.  

Eastern Conference

Capitol Division

TEAMWLTPct
y 1968 Dallas Cowboys LogoDallas 1220.857
1968 Washington Redskins LogoWashington 590.357
1968 New Orleans Saints LogoNew Orleans 491.308
1968 Philadelphia Eagles LogoPhiladelphia 2120.143

Century Division

TEAMWLTPct
y 1968 Cleveland Browns LogoCleveland 1040.714
1968 St. Louis Cardinals LogoSt. Louis 941.692
1968 New York Giants LogoNY Giants 770.500
1968 Pittsburgh Steelers LogoPittsburgh 2111.154

Western Conference

Central Division

TEAMWLTPct
y 1968 Minnesota Vikings LogoMinnesota 860.571
1968 Chicago Bears LogoChicago 770.500
1968 Green Bay Packers LogoGreen Bay 671.462
1968 Detroit Lions LogoDetroit 482.333

Coastal Division

TEAMWLTPct
y 1968 Baltimore Colts LogoBaltimore 1310.929
1968 Los Angeles Rams LogoLos Angeles 1031.769
1968 San Francisco 49ers LogoSan Francisco 761.538
1968 Atlanta Falcons LogoAtlanta 2120.143