Category:Ports and harbours of the North Sea

• Port of Amsterdam‎ (10 P)
• Port of London‎ (3 C, 148 P)
• Port of Rotterdam‎ (12 P)

*

• Port cities and towns of the North Sea‎ (2 C, 124 P)

H

• Ports and harbours of the Humber‎ (1 C, 14 P)

T

• Ports and harbours of the Thames Estuary‎ (1 C, 12 P)