Duncan Weller (born October 1975) is a Canadian writer and visual artist known for his children's picture books. He writes poetry, short stories, and novels for young people and adults. His visual art is displayed often in solo and group shows. Duncan won two of Canada's top awards, a Governor General's Award and the Ruth and Sylvia Schwartz Award, for his picture book The Boy from the Sun.

Duncan was born in Sherbrooke, Quebec in 1975 to English immigrants. His family moved to Thunder Bay where his father took an associate professor's job at Lakehead University. At the same university Duncan studied English Literature (HBA) and Visual Art (BA).

Duncan moved around the country, living in Toronto, Victoria, North Vancouver and Montreal. He worked primarily as a picture framer and illustrator. In Vancouver he worked as a freelance sculptor, painter and director for Delta Play and Klondike Kidstuff, companies that produced play areas and large themed projects for museums and large commercial enterprises. Returning to Thunder Bay he worked in the marketing department of Magnus Theatre. In 2008 he won the 2007 Governor General's Award in the children's literature for his book The Boy from the Sun, as well the Ruth and Sylvia Schwartz Children's Book Award. He secured several grants from the Ontario Arts Council to continue his book and visual arts projects. He wrote an arts column for The Chronicle-Journalcalled, Art on the Edge. He received a Chalmers Arts Fellowship allowing him to do research in Ghana for a picture book. Due to breaches of contract by his Canadian publisher, Simply Read Books, Duncan obtained the rights to his previously published picture books. In 2013 he self-published three hardcover children's picture books, The Love Ant, Big Electric Cat, The Ugg and the Drip with a printing of 3,000 copies of each using Kromar printers in Winnipeg. In 2015 he printed 5,000 copies of a second expanded edition of The Boy from the Sun. Many future books are pending. Duncan continues to lend a hand on film productions as an actor and visual artist. In 2017 he opened a small gallery, Rogue Planet Gallery. In 2019 the gallery closed due to the pandemic. In November of 2024 Duncan published three books; Hardball and Riley: The Ultimate Package, (a collection of comics), The Chameleon Snake (children's picture book), and a novel, We Play You.

• "Winners of the 2007 Governor General's Literary Awards". Canada Council of the Arts. Archived from the original on June 9, 2011. Retrieved March 5, 2010.
• "2008 Ruth and Sylvia Schwartz Childrenís Book Awards Winners Announced". Ontario Arts Foundation. Retrieved June 25, 2015.
• "Review: The Boy From the Sun". March 6, 2008. Archived from the original on September 7, 2009. Retrieved March 5, 2010.
• "The Unusual Duncan Weller". Members.shaw.ca. February 11, 2009. Retrieved June 25, 2015.

• Official website
• Duncan Weller Pronunciation Guide on Teachingbooks.net