Elias Sadaq was born in 1994 in Aarhus, Denmark. He is a poet and a playwright.​
He debuted in 2019 with a collection of poems, GADESTREGER ​(in English: STREETLINES).
He wrote a monologue, Den unge Elias' lidelser (in English: The Sorrows of Young Elias) in 2021, which he himself performed at Folketeatret in Copenhagen.
He is currently studying Dramatic Writing at the Danish School of Performing Arts, where in 2023 he wrote and directed a dystopian play about war, sex and masculinity, FREMMEDLEGIONEN​​ ​(in English: THE FOREIGN LEGION).
In 2024, he has released Djinn, a collection of poems about obsession and desire, published by Gyldendal. Selected poems from Djinn have been translated into English and published in BEDTIME Magazine No. 5 and the anthology Moist Wild Apple from Ordskælv. He has been awarded with Seahorse of The Year by the organization LGBT+ Danmark and was among the finalist for the Bodil & Jørgen Munch-Christensen's Debutant Award for book and the Prisma Literature Awards.
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In 2024 Aarhus Teater produced his adaptation of Køresvenden (in English: The Phantom Carriage), based on a gothic novel from 1912 by Selma Lagerlöf. In the fall of 2025, Blaagaard Teater in Copenhagen produces Elias' own adaptation of his book Djinn.
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He is working as a writer-in-residence at the University of Southern Denmark in 2025-26.