The 2005 WGC-World Cup took place 17–20 November at the Oceânico Golf on its Victoria Course in Vilamoura, Algarve, Portugal.

The course was designed by Arnold Palmer and opened in 2004, the year before it hosted the World Cup.

Eleven years after this tournament, in 2016, Dom Pedro Golf acquired the Victoria Course and four other Vilamoura courses from Oceânico Golf.

The Welsh team of Stephen Dodd and Bradley Dredge won.

They won by two strokes over the English and Swedish teams after the event was shortened to 54 holes due to rain.