Free wallpapers about Football and Soccer and Football teams. to decorate your desktop background. Football is the name given to a number of different team sports. The most popular of these world-wide is association football (also known as soccer). The English language word "football" is also applied to American football (also known as gridiron), Australian rules football, Canadian football, Gaelic football, rugby football (rugby league and rugby union), and related games. Each of these codes (specific sets of rules, or the games defined by them) is referred to as "football".