Portrait of Robert Vernon is an 1846 portrait painting by the British artist Henry William Pickersgill. It depicts the English businessman and art collector Robert Vernon. Vernon has made a fortune supplying horses to the British Army during the Napoleonic Wars and was known for collecting contemporary British art in preference to Old Masters. He is shown seated informally with a dog on his lap.
Pickersgill was a leading portraitist who had been hailed as one of the natural successors to the celebrated Regency era figure Thomas Lawrence. The painting was displayed at the Royal Academy Exhibition of 1847 held at the National Gallery in London. The same year Vernon made the large Vernon Gift of artwork to the nation which included this picture. Today the painting is in the collection of Tate Britain in Pimlico. An engraving based on the painting was produced by William Henry Mote.