Robert Scott Lauder RSA was a Scottish artist who described himself as a "historical painter". He was one of the original members of the Royal Scottish Academy.

Lauder was born at Silvermills, Edinburgh, the third son of Helen Tait (d.1850) and John Lauder of Silvermills (d. 1838), Burgess of Edinburgh and proprietor of the tannery at Silvermills. After attending the Royal High School he went to London, where his eldest brother William was engaged in the family business.

He returned to Edinburgh in about 1826 and was elected one of the original members of the Royal Scottish Academy in 1830. At this point Lauder was living with his brother William Lauder at 24 Fettes Row in Edinburgh's New Town. On 9 September 1833 at St Cuthbert's Church in Edinburgh he married Isabella Ramsay Thomson and they then went abroad, accompanied by his younger artist-brother, James Eckford Lauder. Robert studied for some years in Rome, Florence, Bologna, Venice and Munich.

Lauder returned to London in 1838 where he lived for several years, where his three children — Isabella, John, and Robert — were baptised at St. Thomas’s Church, Southwark, in 1840, 1841, and 1844 respectively. Whilst in London he exhibited at the Royal Academy and competed in the Westminster Hall competition of 1847, sending his Christ walking on the Sea, which was subsequently purchased by Lady Angela Burdett-Coutts, 1st Baroness Burdett-Coutts. He became the first president of the short-lived National Institution of Fine Arts and also exhibited there.

He later removed back to Edinburgh in 1849 where both his sons — Robert Scott Lauder (born 1844), who became a physician, and John Thomson Lauder (1841–1865) — attended the Edinburgh Academy. Sir Walter Scott's novels provided him with subjects for many of his most successful historical paintings. About 1860 he suffered a paralytic stroke and did not practice after 1861. He died at Edinburgh from a bout of bronchitis on 21 April 1869, still paralysed.

He is buried in Warriston Cemetery in Edinburgh, beneath a large pale sandstone stone with white Sicilian marble inset, carved by John Hutchison. It stands to the east side of the westmost path, just south of Horatio McCulloch's grave, but is hard to spot as the sculpture and main monument faces away from the path into the undergrowth. His name is however listed at the head of the reverse side (facing the path) above that of his younger brother, James Eckford Lauder who is buried with him.