Catharine Dowman (née Courtauld; 25 May 1878 – 19 September 1972) was an English philanthropist associated with women's suffrage and the restoration of the Cutty Sark.

She was born in Bocking, Essex,[3] the daughter of Sydney Courtauld (1840–1899) and Sarah Lucy Sharpe (1844–1906).

In 1912, she met her future husband, Wilfred Harry Dowman, whilst a passenger sailing from London to Sydney on the Port Jackson,[4] a cadet training ship.

[2][7] Over the next two years, the Dowmans funded the restoration of the ship and by 1924 Cutty Sark was displayed as the flagship at the Fowey Regatta.

Her Suffrage Atelier posters were often witty – such as the 'Prehistoric Argument[8] and the 'Anti-Suffrage Ostrich'[9] – and were widely distributed as postcards.