Portrait of Lord Melbourne is an 1844 portrait painting by the English artist John Partridge portraying the British politician and former prime minister William Lamb, 2nd Viscount Melbourne.

[1] Melbourne is shown as a distinguished statesman wearing a fur-lined coat.

[2] Behind him on the top right is a large leather bound volume of state papers.

The portrait likely grew out of a study of Melbourne for Partridge's work The Fine Arts Commissioners.

[3] The painting is now in the National Portrait Gallery, London, having been donated in 1893 by Lord Carlisle whose father had acquired it from the artist.