Dumitru Matcovschi was a writer from Moldova who was a member of the Academy of Sciences of Moldova. He was a founder of the Popular Front of Moldova.

Dumitru Radu Popescu was a Romanian novelist, poet, dramatist, essayist and short story writer. He was a corresponding member of the Romanian Academy and was, between 1980 and 1990, Chairman of the Romanian Writers' Union.

Carmelo Psaila, better known as Dun Karm was a Maltese priest, writer and poet, sometimes called 'the bard of Malta'. He is widely recognised as the Maltese national poet.

Dunash ha-Levi ben Labrat was a medieval Jewish commentator, poet, and grammarian of the Golden age of Jewish culture in Spain. He is known for his philological commentary, Teshuvot Dunash, and for his liturgical poems D'ror Yiqra and D'vai Haser.

Duncan Ball is an American-born Australian author who has written the children's series Selby and Emily Eyefinger.

Donnchadh Bàn Mac an t-Saoir, anglicized as Duncan Ban MacIntyre, was one of the most renowned of Scottish Gaelic poets. He formed an integral part of one of the golden ages of Gaelic poetry in Scotland during the 18th century.

Duncan Black, FBA was a Scottish economist who laid the foundations of social choice theory. In particular he was responsible for unearthing the work of many early political scientists, including Charles Lutwidge Dodgson, and was responsible for the Black electoral system, a Condorcet method whereby, in the absence of a Condorcet winner, the Borda winner is chosen.

Duncan Falconer is the pseudonym of an author and former Special Boat Service commando. As a child, he was raised in an orphanage in North London before being adopted by a family from Battersea.

Duncan Fallowell is an English novelist, travel writer, memoirist, journalist and critic.

Duncan Forbes (28 April 1798 – 17 August 1868) was a Scottish linguist and orientalist.