The Blackfriars Rotunda was a building in Southwark, near the southern end of Blackfriars Bridge across the River Thames in London, that existed from 1787 to 1958 in various forms. It initially housed the collection of the Leverian Museum after it had been disposed of by lottery. For a period it was home to the Surrey Institution. In the early 1830s it notoriously was the centre for the activities of the Rotunda radicals. Its subsequent existence was long but less remarkable.
