The 1898 Pembrokeshire by-election was a parliamentary by-election held for the UK House of Commons constituency of Pembrokeshire in South West Wales on 15 February 1898.
The by-election was caused by the appointment as Attorney general of the Bahamas of the sitting Liberal MP, William Rees-Davies.
Two candidates were nominated.
The Liberal Party nominated John Philipps, a barrister. He held the seat.
The Conservative Party nominated the 4th Earl Cawdor, Hugh F V Campbell.