Stepan Protsiuk was born on 13 August 1964 in small village Kuty in Lviv Oblast of Ukrainian SSR.

His parents were school teachers, and his father was a political prisoner who was sentenced for anti-Soviet propaganda before Stepan's birth.

Since the early 1990s, he has been living in Ivano-Frankivsk and teaching Ukrainian literature at the Precarpathian National University alongside his writing career.

Protsiuk was a member of National Writers' Union of Ukraine since 1995 until he quit the organization in 2017, claiming that he had "different views on the development of the Ukrainian literature".

[1] In 1992, the group published their first book New Degeneration (foreword by Yurii Andrukhovych), which included Protsiuk's collection of poems titled At the Edge of Two Truths.

Protsiuk is also known for his fiction novels devoted to prominent Ukrainian writers – Vasyl Stefanyk (The Rose of Ritual Pain), Volodymyr Vynnychenko (Masks Fall off Slowly), Arhip Teslenko (Black Apple).

Several works by Stepan Protsiuk are included in the list of literature recommended for reading in middle and high school in Ukraine.