The advertising world is mourning the loss of John J. Dooner Jr., the visionary founder of McCann Worldgroup, who passed away peacefully on December 31, 2025, surrounded by family and close friends. He was 77.

A Career Defined by Leadership and Innovation

Significantly, Dooner’s career in marketing and communications spanned decades, marked by leadership, innovation, and a steadfast commitment to elevating the industry.

Consequently, he began his journey with McCann in 1984, contributing to campaigns for iconic brands such as Coca-Cola and Gillette. By 1992, his dedication and strategic insight earned him the role of president and CEO of McCann Erickson, a position he held for eight transformative years.

Building a Global Marketing Powerhouse

Meanwhile, under Dooner’s guidance, McCann Worldgroup expanded into a powerhouse network encompassing agencies like McCann, MRM, Momentum, McCann Health, and Craft, establishing a global footprint in integrated marketing communications.

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However,his leadership extended beyond the agency, briefly serving as chairman and CEO of Interpublic Group (IPG), McCann’s parent company, where he spearheaded the acquisition of True North before returning to McCann Worldgroup as chairman and later Chairman Emeritus.

Extending Influence Across the Industry

In other words, Dooner’s influence was felt across the broader advertising ecosystem. He served as chairman of the Ad Council, vice chairman of the 4A’s, and collaborated closely with the Advertising Education Foundation (AEF) to nurture the next generation of marketing professionals.

Moreover, his commitment to social causes was equally notable, including work with initiatives such as Peace One Day, Product Red, and serving as the first global chairman of United Way.

Honouring a Lasting Legacy

In recognition of his contributions, Dooner was inducted into the Advertising Hall of Fame in 2019, cementing his legacy as a luminary in the global marketing and communications industry.

Family Tribute and Final Reflections

In a tribute shared on LinkedIn, his family said, “John will be remembered for his warmth, integrity, and generosity of spirit. He leaves behind a legacy that will inspire generations of advertisers and storytellers around the world.”