Thousands of mourners are expected to gather at a Melbourne cathedral on Wednesday to bid farewell to cricket legend Keith Miller.

Politicians, sporting greats and media identities will be among those attending the afternoon state funeral at St Paul's Cathedral for Miller, who died last Monday, aged 84.

Miller was born in Sunshine in Melbourne's western suburbs in 1919.

He represented Victoria in cricket and football, before becoming a member of The Invincibles, the national cricket team that toured England undefeated in 1948.

Miller played 55 Test matches for Australia, and 50 football games for St Kilda and Victoria.

Part of a famous opening bowling combination with Ray Lindwall, Miller took 170 Test wickets at 22.98 runs. He scored 2,958 Test runs, with seven centuries, at 36.98 an innings.

He was one of only three Australians to have their portrait hanging in the member's pavilion at Lord's in London, along with Sir Donald Bradman and Victor Trumper.

Miller, who was a fighter-bomber pilot for the RAAF, was as renowned for the panache in which he played and lived as for his cricketing record.

The state funeral will be held at St Paul's at 1pm (AEST).

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