Ingeborg (Inger) Johanne Gamburg née Mohr (1892–1979) was a Danish trade unionist and a member of the Communist Party of Denmark.
She encouraged the women workers to go out on strike, but while this led to an increase in wages, she lost her job after a dispute with the union leader, Helga Larsen, who had just been elected to the Folketing.
Together with Marie-Sophie Nielsen, a communist, in 1925 she established the radical Women Workers' Enlightenment Association (Arbejderkvindernes Oplysningsforening AO) where she became chair.
Gamburg also fought for equal pay for men and women, although it did not become part of the organization's official agenda until after the Second World War.
In 1928, after attending the Red International of Labor Unions Congress in Moscow, Gamburg joined the Danish Communist Party (DKP).