| 1981 Miracle Indoor Championships | |
|---|---|
| Date | 19–25 October |
| Edition | 2nd |
| Category | Grand Prix |
| Draw | 32S / 16D |
| Prize money | $125,000 |
| Surface | Carpet / indoor |
| Location | Melbourne, Victoria, Australia |
| Champions | |
| Singles | |
 Peter McNamara[1] | |
| Doubles | |
| Peter McNamara / Paul Kronk[2] | |
The 1981 Miracle Indoor Championships, also known as the Melbourne Indoor Championships, was an Association of Tennis Professionals men's tournament played on indoor carpet courts in the Frankston suburb of Melbourne, Victoria, Australia. It was the second edition of the tournament, which was part of the 1981 Grand Prix tennis circuit, and was held from 19 October until 25 October 1981. First-seeded Peter McNamara won the singles title after his opponent Vitas Gerulaitis defaulted the match at 5–5 in the final set in a protest against what he viewed as bad umpiring and line judging.[3][4]
