Robert Hall Weir ( WEER; né Parber; October 16, 1947 – January 10, 2026) was an American musician and songwriter best known as a founding member of the Grateful Dead. After the group disbanded in 1995, he performed with the Other Ones, later known as the Dead, together with other former members of the Grateful Dead. Weir also founded and played in several other bands during and after his career with the Grateful Dead, including Kingfish, the Bob Weir Band, Bobby and the Midnites, Scaring the Children, RatDog, and Furthur, which he co-led with former Grateful Dead bassist Phil Lesh.
