The 1951 Claxton Shield was the twelfth annual Claxton Shield, it was held in Adelaide, South Australia. The participants were South Australia, New South Wales, Victoria, Western Australia and Queensland. The series was won by an undefeated New South Wales, their sixth Shield title.[1]
| 28 July | Queensland | 0-5 | New South Wales | |
| South Australia | 6-0 | Victoria | ||
| 30 July | South Australia | 3-0 | Western Australia | |
| Queensland | 4-2 | Victoria | ||
| 31 July | Queensland | 0-3 | South Australia | |
| New South Wales | 3-1 | Western Australia | ||
| 2 August | Queensland | 0-9 | Western Australia | |
| New South Wales | 4-0 | Victoria | ||
| 4 August | Victoria | 10-3 | Western Australia | |
| New South Wales | 6-1 | South Australia | ||
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