The River Brent rises on Barnet Common in Barnet, north London. It flows east of the River Dollis and west of Dollis Brook, passing through Cricklewood to Park Royal, then through the north-west corner of Acton Park. It joins the River Thames via the Grand Union Canal at Brentford, Greater London.
The name "Brent" applies from Sudbury onward; it's also called the Brent River.