The 1973 Australian Indoor Championships was a men's tennis tournament played on indoor hard courts at the Hordern Pavilion in Sydney, Australia.

It was part of the 1973 Commercial Union Assurance Grand Prix as a Group B category tournament.

It was the inaugural edition of the tournament and was held from 4 November through 11 November 1973.

[3][4][5] Rod Laver won the singles title and the accompanying $10,000 first-prize money.

[6] Rod Laver defeated John Newcombe 3–6, 7–5, 6–3, 3–6, 6–4 Rod Laver / John Newcombe defeated Mal Anderson / Ken Rosewall 7–6, 6–2