Tyburn was a village in the county of Middlesex close to the current location of Marble Arch in present-day London. It took its name from the Tyburn Brook, a tributary of the River Westbourne. The name Tyburn, from Teo Bourne meaning 'boundary stream', is quite widely occurring, and the Tyburn Brook should not be confused with the better known River Tyburn, which is the next tributary of the River Thames to the east of the Westbourne.