- Length: 346 km (215 miles)
- Source: Thames Head, Gloucestershire
- Estuary: North Sea near London
- Notable landmarks: Tower Bridge, the Shard, Houses of Parliament
2. River Severn
- Length: 354 km (220 miles)
- Source: Plynlimon, Powys
- Estuary: Bristol Channel
- Notable landmarks: Ironbridge Gorge, Worcester Cathedral, Gloucester Docks
3. River Tyne
- Length: 139 km (86 miles)
- Source: Tyne Head, Northumberland
- Estuary: North Sea near Newcastle-upon-Tyne
- Notable landmarks: Tyne Bridge, Gateshead Millennium Bridge, Sage Gateshead
4. River Trent
- Length: 297 km (184 miles)
- Source: Biddulph Moor, Staffordshire
- Estuary: Humber Estuary
- Notable landmarks: Nottingham Castle, Newark Castle, Gainsborough Old Hall
5. River Clyde
- Length: 176 km (109 miles)
- Source: Lowther Hills, South Lanarkshire
- Estuary: Firth of Clyde
- Notable landmarks: Glasgow Cathedral, Riverside Museum, Clyde Auditorium