Gwendolen Maud Plunket Greene (née Parry; 6 February 1878 – 29 July 1959) was an English writer on religion.

The Parry sisters grew up amidst "the heart of late Victorian musical and artistic society", as Greene would later tell Evelyn Waugh, friend to her children.

[2] It has been said that Waugh's conversion to Catholicism was favored by Gwen Greene giving him von Hügel's letter and her book, Mount Zion.

[1] In 1958 her daughter Olivia died from breast cancer and one month later Greene moved into St. Teresa's Private Hospital, Corston.

Her sister Dolly wrote: "She did not want to live... she died of a broken heart... the devotion to her children was remarkable".