1931 Australian Championships – Men's singles
| Men's singles | |
|---|---|
| 1931 Australian Championships | |
| Champion | Jack Crawford |
| Runner-up | Harry Hopman |
| Score | 6–4, 6–2, 2–6, 6–1 |
| Draw | 32 (4 Q ) |
| Seeds | 8 |
Jack Crawford defeated Harry Hopman 6–4, 6–2, 2–6, 6–1 in the final to win the men's singles tennis title at the 1931 Australian Championships.