| Merseyside (West) | |
| Sport: | Rugby union |
| Teams: | 12 |
| Champion: | Southport (1st title) |
| Season: | 2015-16 |
| Most Champs: | Southport |
| Count: | 1 |
| Website: | clubs.rfu.com |
Merseyside (West) was a regional league for teams from the Merseyside area which ranked at tier 8 of the English rugby union system. The league had replaced South Lancs/Cheshire 2 and South Lancs/Cheshire 3. The league was contested for just one season and the following season South Lancs/Cheshire divisions 2 and 3 were restored.
| Team | Ground | Capacity | City/Area | Previous season |
|---|---|---|---|---|
| Birchfield Park Sports & Social Club | Transferred from North Lancashire 1 (9th) | |||
| Whitby Sports and Social Club | Transferred from South Lancs/Cheshire 3 (1st) | |||
| Wyncote Playing Fields | Transferred from South Lancs/Cheshire 3 (8th) | |||
| Mossley Hill Athletic Club | Transferred from North Lancashire 2 (5th) | |||
| Newton-le-Willows Sports Club | Transferred from North Lancashire 2 (9th) | |||
| Belvidere Recreational Ground | Transferred from South Lancs/Cheshire 3 (6th) | |||
| Holm Lane | Transferred from South Lancs/Cheshire 3 (7th) | |||
| Leverhulme Playing Fields | Transferred from South Lancs/Cheshire 2 (10th) | |||
| Prenton Dell Road | N/A | |||
| Ruskin Drive Sports Ground | Transferred from South Lancs/Cheshire 1 (14th) | |||
| Recreation Ground | 3,500 | Transferred from South Lancs/Cheshire 2 (3rd) | ||
| Sandfield Park | Transferred from North Lancashire 1 (11th) | |||
| Cross Lane | Transferred from South Lancs/Cheshire 3 | |||
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| Season | No of Teams | Champions | Runners–up | Relegated Teams | League Name | ||||||||||
| 2015–16[1] | 12 | Southport | No relegation | Merseyside (West) | |||||||||||
| Green backgrounds are promotion places. | |||||||||||||||