The 2005 AFL Grand Final was an Australian rules football game contested between the Sydney Swans and West Coast Eagles at the Melbourne Cricket Ground on 24 September 2005. It was the 109th annual grand final of the Australian Football League (formerly the Victorian Football League), staged to determine the premiers for the 2005 AFL season. The match, attended by 91,898 spectators, was won by Sydney by a margin of four points, marking the club's fourth Premiership and their first since 1933.

It remains the highest-rating AFL game of all time (with 3.4 million metropolitan viewers), since the current OzTam measurement system was introduced in 2001.

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