London and South East Division Rugby Football Union

• Eastern Counties
• Essex
• Hampshire
• Hertfordshire
• Middlesex
• Surrey
• Sussex

It organises the following leagues:^[1]

• London & South East Premier (tier 5)
• London 1 North (6)
• London 1 South (6)
• London 2 North East (7)
• London 2 North West (7)
• London 2 South East (7)
• London 2 South West (7)
• London 3 Eastern Counties (8)
• London 3 Essex (8)
• London 3 North West (8)
• London 3 South East (8)
• London 3 South West (8)
• Eastern Counties 1 (9)
• Eastern Counties 2 (10)
• Essex 1 (9)
• Hampshire Premier (9)
• Hampshire 1 (10)
• Hampshire 2 (11)
• Herts/Middlesex 1 (9)
• Herts/Middlesex 2 (10)
• Kent 1 (9)
• Kent 2 (10)
• Surrey 1 (9)
• Surrey 2 (10)
• Surrey 3 (11)
• Surrey 4 (12)
• Sussex 1 (9)

Clubs also take part in the following national cup competitions:

• RFU Intermediate Cup
• RFU Senior Vase
• RFU Junior Vase

• Eastern Counties 4
• Eastern Counties 5
• Eastern Counties 6
• Essex 2
• Essex 3
• Herts/Middlesex 3
• Herts/Middlesex 4
• Herts/Middlesex 5
• Hertfordshire 1
• Hertfordshire 2
• Middlesex 1
• Middlesex 2
• Middlesex 3
• Middlesex 4
• Middlesex 5
• Surrey 5
• Sussex 2
• Sussex 3

• Midland Division
• Northern Division
• South West Division
• English rugby union system

• RFU London & South East