Arthur Gilbert was an English landscape painter during the Victorian era, and a member of the Williams family of painters.

Arthur Gilbert was born Arthur Gilbert Frederick Williams on 19 December 1819 at Newington Butts Road in South East London. He was the fourth son of the painter Edward Williams (1781–1855) and Ann Hildebrandt (c.1780–1851), and a member of the Williams family of painters, who were related to such famous artists as James Ward, R.A. and George Morland. His father was a well-known landscape artist, who taught him how to paint; otherwise he received no formal instruction.

He married Elizabeth Jane Williams, daughter of John Williams, on 23 January 1843 in St Martin in the Fields. From all accounts Arthur had a gentle disposition and was a most devoted husband and father. In 1848 he lost his first wife, Elizabeth, due to tuberculosis. He was left with their daughter, Kate, who had been born five years prior. He then married his second wife, Sarah Godfrey, the daughter of John Godfrey, a clerk, on 28 June 1854, at the Parish Church in Barnes. Their son Horace was born the following year. Both of his children displayed artistic talent and later painted and exhibited.

Arthur Gilbert had addresses in Weybridge and Hammersmith, but spent most of his years at Lonsdale Terrace in Barnes, close to his father and brothers. He moved to Redhill in 1873 and then to De Tillens in Limpsfield, Surrey. This was his home for many years, to well after the marriage of his son, who produced some fine watercolours of the place. He died 21 April 1895 in Croydon, Surrey.