Joseph Walter Muaausa (born December 15, 1961) is an athlete from Samoa, who competes in archery.
At the 2008 Summer Olympics in Beijing Muaausa finished his ranking round with a total of 563 points, which gave him the 64th seed for the final competition bracket in which he faced first seed Juan René Serrano in the first round. Serrano won the match by 116-88 and Muaausa was eliminated. Serrano would lose the match for the bronze medal against Bair Badënov.[1]