Jack Crawford defeated Keith Gledhill 2–6, 7–5, 6–3, 6–2 in the final to win the men's singles tennis title at the 1933 Australian Championships.
The seeded players are listed below. Jack Crawford is the champion; others show the round in which they were eliminated.
Ellsworth Vines (quarterfinals)
Jack Crawford (champion) Wilmer Allison (semifinals) Harry Hopman (quarterfinals) John Van Ryn (second round) Vivian McGrath (semifinals) Keith Gledhill (finalist) Adrian Quist (quarterfinals)