Nasmyth, Alexander (nā`smĭth), 1758–1840, Scottish landscape and portrait painter. His Stirling Castle (National Gall., London) is a good example of his simple, picturesque Scottish scenes. His portrait of Robert Burns is in the National Gallery of Edinburgh. His son and pupil, Patrick Nasmyth, 1787–1831, was a celebrated landscapist. His At Penshurst, Kent is in the Metropolitan Museum.