The Princess Louise is a historic public house on High Holborn in London which is famous for its remarkable interior, with its wood panelling and series of 'booths' around an island bar. It is a tied house, being owned by the Samuel Smith Brewery of Tadcaster in Yorkshire. The building is protected by its Grade II listing with an interior dating to the late 19th Century, by W. B. Simpson and is listed on CAMRA's national inventory of historic pub interiors. Considered so historically significant, even the men's toilets are listed. The pub was refurbished in 2007.
Being located near Bloomsbury, The British Museum and the University of London, it is patronised by professors and other educationalists. In June 2009, the pub was joint winner of the best refurbishment class of the 2008 Pub Design Awards awarded annually by CAMRA. Author Peter Haydon included the Princess Louise in his book, The Best Pubs in London and rated it No.5 in the capital, saying it had "possibly the best preserved Victorian pub interior in London".