(1740 - 14 January 1813) was a British landscape and marine painter and etcher.
Marlow was born in Southwark in London, and studied for 5 years under the marine painter Samuel Scott, and also at the St. Martin's Lane Academy, London.
He became a member of the Incorporated Society of Artists, and from 1762 to 1764 contributed to their exhibitions in Spring Gardens. He was employed in painting views of country houses.
From 1765 to 1768, on the advice of the Duchess of Northumberland, he travelled in France and Italy. On his return to Britain he renewed his contributions to the Society of Artists, and took up residence in Leicester Square, London - he was made a Fellow of the Society in 1771.
In 1788 he moved to Twickenham, and started to exhibit at the Royal Academy, showing works regularly until 1796, and again, for the last time, in 1807, when he exhibited Twickenham Ferry by Moonlight.
Marlow died in Twickenham on 14 January 1813.