- a river in S England, flowing E through London to the North Sea. 209 miles (336 km) long.
- a river in SE Canada, in Ontario province, flowing SW to Lake St. Clair. 160 miles (260 km) long.
- an estuary in SE Connecticut, flowing S past New London to Long Island Sound. 15 miles (24 km) long.
- a river in S England, rising in the Cotswolds in several headstreams and flowing generally east through London to the North Sea by a large estuary. Length: 346 km (215 miles)
- a river in SE Canada, in Ontario, flowing south to London, then southwest to Lake St Clair. Length: 217 km (135 miles)
