Robert Graham Marshall-Andrews KC (born 10 April 1944) is a British barrister, author, and retired politician, who was the Labour Member of Parliament (MP) for Medway from 1997 to 2010.

[8] During a break in the Terror Bill debate on 9 November 2005, Marshall-Andrews was seen talking to Conservative MPs Andrew Mitchell, Greg Knight and Damian Green in the Commons lobby.

Marshall-Andrews subsequently insisted that he had actually shouted "faccio", an Italian word meaning a menial assistant, from which the public school slang 'fag' is thought to derive.

On 31 October 2006, Marshall-Andrews was one of 12 Labour MPs to back Plaid Cymru and the Scottish National Party's call for an inquiry into the Iraq War.

[11] Despite his leftist position, however, he nominated Gordon Brown (rather than John McDonnell) for the Labour Party leadership in 2007 and Peter Hain as deputy leader at the same time.

In December 2008, Marshall-Andrews became the first Labour MP to publicly call for the resignation of Speaker Michael Martin over the arrest of Damian Green.

He has written articles in the national newspapers (The Daily Telegraph, The Guardian, The Independent, The Sunday Times) and periodicals (New Statesman, parliament's The House magazine, and Tribune).

[16][17] He is also Founder and Trustee of the George Adamson Wildlife Trust, currently operating in Mkomazi National Park, Tanzania.

On 20 April 2017, the day after parliament voted for an early general election, Marshall-Andrews defected to the Liberal Democrats, calling his former party a "basket-case" and citing its position on Brexit and the failure of his former party to stand down in the 2016 Richmond Park by-election in favour of the Liberal Democrats as reasons for his defection.