Guillaume Wollner is a Belgian journalist and documentary director with a long-standing career at RTBF, the French-language public broadcaster of Belgium and a member of the European Broadcasting Union.
Trained at the Institut des Arts de Diffusion (IAD) in Louvain-la-Neuve, he began his career in the film industry in the 1990s, working as an assistant director on projects including Le rêve d'Urias before finding his métier in investigative journalism and documentary filmmaking.
At RTBF, Wollner has built a reputation as a rigorous and socially engaged journalist, contributing to some of the broadcaster's most respected investigative programmes. His work for Investigation and Questions à la Une has taken him deep into complex social, economic and institutional subjects — from the future of television and questions of upbringing to, more recently, a high-profile enquiry into the escalating costs of the Kanal–Centre Pompidou project in Brussels, the Belgian satellite of Paris's iconic contemporary art institution.
His commitment to public-interest journalism was recognised in 2023, when he and fellow journalist Sophie Mergen received the Prix du Journalisme of the Parliament of the French-speaking Community of Belgium. The award honoured their radio reportage Pénurie d'infirmières, des vies en danger (Nursing Shortage, Lives at Risk), broadcast on La Première, RTBF's flagship radio station. The piece shed light on the critical pressures facing nursing staff and the safety risks those conditions posed to patients — a subject with clear relevance across European healthcare systems.
Across his career, Wollner has demonstrated a consistent ability to translate complex realities into compelling narratives for a broad audience, whether on radio, television or in documentary form.
