1973 Australian Indoor Championships

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. Rod Laver won the singles title and the accompanying $10,000 first-prize money.

Singles
🇦🇺 Rod Laver defeated 🇦🇺 John Newcombe 3–6, 7–5, 6–3, 3–6, 6–4
 * It was Laver's 14th title of the year and the 50th of his career.

Doubles
🇦🇺 Rod Laver / 🇦🇺 John Newcombe defeated 🇦🇺 Mal Anderson / 🇦🇺 Ken Rosewall 7–6, 6–2
 * It was Laver's 13th title of the year and the 49th of his career. It was Newcombe's 10th title of the year and the 48th of his career.