Gladys, Baroness Swaythling OBE DStJ (née Goldsmid; 4 December 1879 – 8 January 1965), was a prominent member of the British Jewish community, a philanthropist and wife of Louis Montagu, 2nd Baron Swaythling.

During the First World War Swaythling volunteered with the Wounded Allied Committee and Belgian refugees.

[1][2][5] André Simon credited her with inspiring the founding of International Wine and Food Society.

Swaythling was President of the Southampton Branch of the Alliance Française in Great Britain.

She was appointed Dame of Grace, Most Venerable Order of the Hospital of St. John of Jerusalem and given an O.B.E.