Chiswick Quay Marina is a private marina situated on the River Thames in Chiswick, West London (W4), offering secure moorings with direct Thames access via private lock gates.

It serves as both a practical facility for boat owners and a defining feature of the surrounding residential estate.

Mooring berths are equipped with water and electricity connections, and the marina also provides pump-out facilities along with shower and changing rooms.

The site supports a range of on-water activities including sailing, kayaking, and stand-up paddleboarding, and sits close to several local rowing clubs. The harbourmaster's office is located at 1 Ibis Lane, London W4.