Portrait of Richard Cumberland is a c.1776 portrait painting by the British artist George Romney of the playwright and diplomat Richard Cumberland.
Cumberland was a popular writer whose plays such as The West Indian had appeared in London's West End. During the late 1770s he went on a mission to Madrid in an unsuccessful attempt to prevent Spanish entry into the American War of Independence. Romney was a top portraitist of the Georgian era. Today the work is in the collection of the National Portrait Gallery on Trafalgar Square having been purchased from the sitter's grandson in 1857.