Bob Weir, longtime guitarist of the Grateful Dead who died in January 2026 at 78, was for years a member of the secretive Bohemian Club, a fact that surprised many fans given the countercultural image of his band. The club, founded in 1878 and based at the 2,700-acre Bohemian Grove north of San Francisco, has long attracted business leaders, politicians and, more recently, celebrities, fuelling decades of conspiracy theories about the gatherings of its wealthy, all-male membership. Renewed scrutiny of elite fraternal organisations following the Jeffrey Epstein revelations has brought fresh attention to the club and, by extension, to Weir's involvement.

A 2023 leak of the Bohemian Club's membership list confirmed Weir and fellow Grateful Dead member Mickey Hart among its ranks, alongside figures such as Mike Bloomberg, Charles Koch, Conan O'Brien and Ken Burns. The club's history includes hosting discussions tied to the Manhattan Project in 1942 and Richard Nixon's 1960 presidential campaign, despite its official motto discouraging talk of business and politics. In a 2012 panel with HeadCount.org, Weir addressed the speculation directly, describing the retreat as a refuge for "successful entrepreneurs" with an "artistic bent" and dismissing rumours of ritualistic behaviour as unfounded, though entertaining, gossip.