Dexter Perkins was a historian who served as Professor and Chairman of the Department of American History at the University of Rochester, before leaving for Cornell.

Deyan Sudjic is a British writer and broadcaster, specialising in the fields of design and architecture. He was formerly the director of the Design Museum, London.

Dezső Kosztolányi was a Hungarian writer, journalist, translator, and also a speaker of Esperanto. He wrote in all literary genres, from poetry to essays to theatre plays. Building his own style, he used French symbolism, impressionism, expressionism and psychological realism. He is considered the father of futurism in Hungarian literature.

Dezső Szabó was a Hungarian linguist, writer, noted mainly for his three-volume novel "Az elsodort falu" and his pamphlets. Szabó's oeuvre is contradictory, some consider it as the peak of Hungarian expressionist prose, others call it one of the first "pioneers of Magyar populist literature". He was a Nobel Prize nominee in 1935. He is also known for his anti-semitic views.

Dhani Ram Chatrik was an Indian poet and typographer.

Dhondup Gyal (1953–1985) is considered the first modern Tibetan poet breaking through traditional Tibetan formalist elements. He is widely regarded in Tibet as the founder of Modern Tibetan Poetry. An accomplished scholar, writer, poet and patriot, he committed suicide in 1985 when he was only 32.

Dhonielle Clayton is an American author and chief operating officer of We Need Diverse Books.

Dhuoda was a Frankish writer, as well as Duchess consort of Septimania and Countess consort of Barcelona. She was the author of the Liber Manualis, a handbook written for her son.

Di Morrissey is a best-selling Australian novelist.

Brook Maurio, known professionally by the pen name Diablo Cody, is an American writer and producer. She gained recognition for her candid blog and subsequent memoir, Candy Girl: A Year in the Life of an Unlikely Stripper (2005). Cody received critical acclaim for her screenwriting debut film, Juno (2007), winning the Academy Award, and the BAFTA Award.