Margaret McKay (née McCarthy; 22 January 1907 – 1 March 1996) was a British Labour Party Member of Parliament for Clapham from 1964 to 1970.

[4] After holding various trade union posts, McKay stood unsuccessfully for Labour in Walthamstow East at the 1959 general election.

[2] At the 1964 general election, she defeated the sitting Conservative MP Alan Glyn for Clapham, taking the seat with a majority of only 556.

[9] In 1970 she approached Sheikh Zayed of the UAR for funds to launch a PR campaign to improve British perception of the Arab World.

[10] This ended in a failed attempt to buy a former finishing school for debutants, The Monkey Club, Pont Street.

She received a warning from the Chief Whip and the leader of the Parliamentary Labour Party over her remarking that 62 Jewish MPs made it impossible for the Government to be anything but pro Israel.