Olivier Sibony

Professor of Strategy, Author of Noise & You’re About to Make a Terrible Mistake!

Olivier Sibony headshot — decision-making expert, strategy professor and author of Noise

Olivier Sibony is the pre-eminent authority on why strategic judgement fails and how to architect better outcomes. As a former Senior Partner at McKinsey and a Professor at HEC Paris, he bridges rigorous behavioural science with the lived reality of the boardroom. On stage for a keynote or when delivering a high-stakes executive briefing, Olivier replaces the myth of the "intuitive leader" with a discipline of Decision Architecture. He deconstructs the cognitive biases and "noise" that distort corporate strategy, offering a roadmap for reducing error without sacrificing organisational momentum.

By reframing decision quality as a systemic challenge rather than an individual talent, he enables boards to synchronise group dynamics with unbiased logic. He transforms predictable human error into a measurable driver of organisational performance, ensuring that strategic governance surfaces dissent rather than reinforcing overconfidence. Through his forensic insights, Olivier ensures decision-makers master the procedural rigour and critical thinking required to lead in an increasingly volatile global economy.

He speaks to leaders who want better decisions, not just better data.

Signature Keynotes

  • Why smart leaders get it wrong.

  • What undermines judgement.

  • Designing better choices.

  • Overconfidence at the top.

  • From bias to clarity.

The Sibony Effect

Strategic thinking becomes clearer, more disciplined, and more robust.

Audiences gain the ability to:

  • Recognise cognitive bias in strategic decisions

  • Improve judgement at board and executive level

  • Design decision processes that reduce costly error

  • Strengthen strategy without adding bureaucracy

  • Align leadership behaviour with long-term performance

Why Book Oliver

Olivier Sibony is trusted by boards, CEOs, and senior teams seeking evidence-based improvement in decision-making and strategy execution. His perspective resonates with organisations responsible for high-stakes choices where judgement, not analysis, determines success.

He brings intellectual rigour, executive credibility, and practical clarity.

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