David Richard Seaborne Davies (26 June 1904 – 26 October 1984) was a Welsh law teacher who served briefly as a Liberal Party Member of Parliament (MP).
When David Lloyd George was given a Peerage after 55 years representing Caernarvon Boroughs, Davies was chosen as the Liberal Party candidate to follow him.
He faced a contest against Plaid Cymru but won the byelection, taking his seat just as the Second World War was coming to an end in Europe.
Unfortunately for Davies, the end of the war brought a swift dissolution to Parliament and he lost his seat to the Conservative Party in the 1945 general election.
His academic position also helped him to publish significant works on the history of patents, and he was President of the Society of Public Teachers of Law in 1960–61.