Estelle O’Callaghan is a strategic advisor, leadership coach and expert facilitator with over 20 years’ experience helping executives and teams implement initiatives that deliver on their strategic ambition. As the founder of 3P Delivery Authority, she brings deep expertise in public administration, education and consulting to support high-stakes initiatives that drive measurable outcomes.

A Churchill Fellow and author of Rock Your Roll Out, Estelle equips organisations to turn vision into action through structured training, good practice coaching and practical consulting support. Her methods challenge traditional mindsets, uplift initiative performance and build capability across all levels, from boards and executives to project delivery teams.

Estelle is especially passionate about unlocking leadership pathways for women and using strategic initiatives as a lever to lift productivity and long-term value. She chairs two Melbourne-based not-for-profit Boards and advocates for inclusive, sustainable leadership.

With multiple qualifications in project management, public administration, history and music, Estelle brings a range of perspectives to the table and is a trusted guide for organisations seeking to deliver results that matter.