Etienne Arthur Boka (born 2 April 1983) is an Ivorian professional footballer who plays as a left back for the Ivory Coast national team. At club level, he is a free agent.
He was a part of the Ivory Coast squads at two FIFA World Cups and five Africa Cups of Nations between 2006 and 2013. Boka is known for his lightning pace even though he is a man of a very small build.
Like many successful players from Ivory Coast, he started his career at homeland club ASEC Abidjan, after coming through their much famed youth system, that has also produced players such as Kolo Touré, Emmanuel Eboué, and Aruna Dindane. He joined the club after walking in from the streets of Ivory Coast capital Abidjan and asking for a trial. Following his graduation from the academy he moved on to Belgian club K.S.K. Beveren in 2002, where impressive performances earned him a transfer to the then Ligue 1 club RC Strasbourg in France for the 2004–05 season. He impressed further at Strasbourg, but following their relegation at the end of the 2005–06 season he left to join German top-flight club VfB Stuttgart. His impressive attack minded play from his left-back position have earned him the nickname of "The African Roberto Carlos". In the 2006–07 season Boka won the Bundesliga title with VfB Stuttgart.