The 1978 Custom Credit Australian Indoor Championships was a men's tennis tournament played on indoor hard courts at the Hordern Pavilion in Sydney, Australia and was part of the 1978 Colgate-Palmolive Grand Prix. The tournament was held from 16 October through 22 October 1978. First-seeded Jimmy Connors won the singles title.[1]
See main article: 1978 Custom Credit Australian Indoor Championships – Singles. Jimmy Connors defeated Geoff Masters 6–0, 6–0, 6–4
See main article: 1978 Custom Credit Australian Indoor Championships – Doubles. John Newcombe / Tony Roche defeated Mark Edmondson / John Marks 6–4, 6–3