Nike is the American athletic shoe and clothing manufacturer. Its logo is definitely one of the most famous brand logos on the planet (and, having a worth of $26 billion alone, the most profitable).

Nike logo is called swoosh. With its laconic design, the swoosh has a special meaning. Its shape depicts an arc of movement. The word 'swoosh' is onomatopoeia for the sound you'd hear as Lebron James or Michael Jordan zips past you en route to a spectacular dunk. The name of the brand comes from Greek mythology, where Nike was the Winged Goddess of Victory.

By the way, the legendary logo was created by a student of Portland State University for as little as 35$!

More Info: en.wikipedia.org