George Alfred Isaacs JP DL (28 May 1883 – 26 April 1979) was a British politician and trades unionist who served in the government of Clement Attlee.

This post, which he held for forty years, also took him onto the General Council of the Trades Union Congress.

In the 1924 election Isaacs lost his seat, but when in 1927 the sitting Labour MP for Southwark North resigned after leaving the party, he was the natural choice to be the new candidate.

Following the arrival at London of the troopship Windrush in 1948, carrying about 500 Jamaican men said to be seeking work, Isaacs stated to Members of Parliament: From January 1951 he was Minister of Pensions.

He had long since moved to East Molesey in Surrey where he served as a Deputy Lieutenant and as a Justice of the Peace.