Rhodri Colwyn Philipps, 4th Viscount St Davids (born 16 September 1966) is a British hereditary peer.
A businessman and company director, as of July 2017, Philipps had been declared bankrupt three times, had a criminal conviction for financial mismanagement and two further convictions for menacing communications.
On 13 July, he was sentenced to 12 weeks in prison for one of them.