Alefoso Yalayalatabua (born Suva, 22 January 1977) is a Fijian rugby union footballer. He plays as a prop. He currently plays for Fiji Warriors.
Yalayalatabua was first capped for Fiji, in 19 May 2007, aged 30, in a 3-8 loss to Samoa. He was in his country squad at the 2007 Rugby World Cup finals, playing a single game, in the 12-55 loss to Australia.
He counts currently 3 caps for his National Team side.