William Yaw Obeng (born April 14, 1983) is a Ghanaian former American football offensive lineman in the Arena Football League. He was signed by the Minnesota Vikings as an undrafted free agent in 2005. He played college football at San Jose State.
Obeng was also a member of the Oakland Raiders, San Jose SaberCats, Arizona Rattlers, and Alabama Vipers.
Before San Jose State, Obeng attended Mesabi Range Community and Technical College.