The 1978 Colgate-Hong Kong Patrons Classic, also known as the Hong Kong Open, was a men's tennis tournament played on outdoor hard courts in Hong Kong that was part of the 1978 Grand Prix tennis circuit. It was the sixth edition of the event and was held from 7 November through 12 November 1978. Eighth-seeded Eliot Teltscher won the singles title.
Eliot Teltscher defeated Pat DuPré 6–4, 6–3, 6–2
Mark Edmondson / John Marks defeated Hank Pfister / Brad Rowe 5–7, 7–6, 6–1