Edith Penelope Mary Lutyens (pseudonym Esther Wyndham; 31 July 1908 – 9 April 1999)[3] was a British author who is principally known for her biographical works on the philosopher Jiddu Krishnamurti.

Mary Lutyens was born in London, the fourth and youngest daughter of the architect Edwin Lutyens, and his wife, Emily, the daughter of Robert Bulwer-Lytton, 1st Earl of Lytton, Viceroy of India, and the granddaughter of the writer and politician Edward Bulwer-Lytton, 1st Baron Lytton.

As a child, Lutyens spent time with her maternal grandmother Edith, the former vicereine, who lived at Knebworth, thirty miles from London, with her daughter the suffragette Constance Bulwer-Lytton.

[6] She wrote novels under the pseudonym "Esther Wyndham" for the Mills & Boon and Harlequin Romance imprints.

[8] She spoke about her aunt the suffragette, Constance Bulwer-Lytton, whose views contrasted with those of Edith, Mary's mother, who disapproved of militancy in the suffrage movement.