Cillian Murphy narrated Jameson Irish Whiskey's global campaign titled 'Must be a Jameson,' which launched in November 2023. This campaign, directed by Bryan Buckley and developed by Ogilvy, focuses on the whiskey's smooth taste while emphasizing themes of togetherness and community. It began its rollout in the U.S. and is set for a global expansion in 2024.

Cillian Murphy was announced as the debut men’s talent for Versace Icons in March 2024, starring in a campaign for the men's collection that launched globally on April 3, 2024. He previously wore custom Atelier Versace designs during the 2024 Awards Season, including a tailored suit at the 96th Academy Awards where he accepted his Oscar for Best Actor.