1977 Custom Credit Australian Indoor Championships

The 1977 Custom Credit Australian Indoor Championships was a men's tennis tournament played on indoor hard courts at the Hordern Pavilion in Sydney in Australia and was part of the 1977 Colgate-Palmolive Grand Prix. The tournament was held from 17 October through 23 October 1977. First-seeded Jimmy Connors won the singles title.

Singles
🇺🇸 Jimmy Connors defeated 🇦🇺 Ken Rosewall 7–5, 6–4, 6–2
 * It was Connors' 6th singles title of the year and the 59th of his career.

Doubles
🇦🇺 John Newcombe / 🇦🇺 Tony Roche defeated 🇦🇺 Ross Case / 🇦🇺 Geoff Masters 6–7, 6–3, 6–1
 * It was Newcombe's only title of the year and the 64th of his career. It was Roche's 2nd title of the year and the 25th of his career.