| Sport | Rugby Union |
|---|---|
| Instituted | 1996 |
| Ceased | 2009 |
| Number of teams | 7 |
| Country |  England |
| Holders | West Park Warriors (1st title) (2008–09) (transferred to North Lancs 2) |
| Most titles | Orrell Anvils, Prenton (2 titles) |
| Website | clubs.rfu.com |
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South Lancs/Cheshire 4 was a regional English rugby union league at the ninth tier of national competition for teams from the South Lancashire, Cheshire and Manchester area. Teams were promoted to South Lancs/Cheshire 3 and generally there was no relegation - although there was up until 2002 when South Lancs/Cheshire 5 was still active. Despite retaining healthy numbers of teams South Lancs/Cheshire 4 was abolished by the end of the 2008-09 season with most teams moving automatically up into South Lancs/Cheshire 3.