Gwladys Helen Cholmondeley, Baroness Delamere, CBE (née Beckett; 17 January 1898 – 22 February 1943), formerly Lady Charles Markham, was the first female Mayor of Nairobi from 1938 to 1940. She was awarded her CBE in 1941 for public services in Kenya. In March 1941 she gave evidence at the trial in Kenya of Sir Henry John Delves Broughton for the murder of Josslyn Hay, 22nd Earl of Erroll. She died on 22 February 1943 and was buried at Soysambu.