Current season or competition: [[2024 S.G. Ball Cup]] | |
 | |
| Sport | Rugby league |
|---|---|
| Instituted | 1965 |
| Inaugural season | 1965 |
| Number of teams | 15 |
| Country |  Australia |
| Premiers |  St George Dragons (4th title) (2024) |
| Most titles |  Parramatta Eels (14 titles) |
| Website | S. G. Ball Cup |
| Related competition | Harold Matthews Cup Laurie Daley Cup Mal Meninga Cup |
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The S. G. Ball Cup is a junior rugby league football competition played predominantly in New South Wales, between teams made up of male players aged under 19. Teams from Canberra and Melbourne, and Auckland (New Zealand Warriors) also participate. Prior to the COVID-19 pandemic in New South Wales a team from Perth (West Coast Pirates) also participated. The competition is administered by the New South Wales Rugby League. The competition includes both junior representative teams of NRL and NSW Cup clubs that do not field a team in the NRL competition.
The S. G. Ball Cup is named after S. G. "George" Ball, one of the five people responsible for the formation of the South Sydney Rabbitohs, and who was club secretary for over fifty years.