Marguerite de Pachmann Labori (14 December 1864 – 3 July 1952), born Anna Louisa Margaret Okey, was an Australian-born pianist, composer, and music educator.

She married two famous men, Russian pianist Vladimir de Pachmann and French lawyer Fernand Labori.

She began learning to play the piano in Australia, but focused her training in England, while still a young child.

[1] In widowhood after her second husband's death in 1917, she wrote and taught piano, and gave a rare recital in 1930 in London.

Marguerite de Pachmann Labori survived World War II in occupied France; she died in 1952, aged 87 years, in Millery.