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.
Elias holds a bachelor of Fine Arts in Theatre and Performance Making (Playwriting) from the Danish National 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. Swedish translations have been featured in the poetry magazine Lyrikvännen, No. 2 2025.
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Elias 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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Elias is working as a writer-in-residence at the University of Southern Denmark in 2025-26.