Tim "Herb" Alexander (born April 10, 1965) is an American musician, best known as the former drummer for the rock band Primus. Tim played on the Primus recordings Suck on This to Tales from the Punchbowl, before leaving the band in 1996, only to rejoin in 2003 for the EP Animals Should Not Try to Act Like People. He was a member of, and toured with, Primus from early 2003 until approximately 2009 when he was replaced by Jay Lane, he joined Primus again in 2014 for their ''Primus and the Chocolate Factory'' tour. Although Alexander has been quoted saying he was originally inspired to become a rock drummer by legendary drummers like John Bonham, Neil Peart and Shaun O'Connor, Primus guitarist Larry LaLonde claims Alexander's drum beats are mostly influenced by African Jùjú music.
Alexander was the first drummer of A Perfect Circle, performing early live shows with the band, and recording drums for the track "The Hollow" on the band's debut album, Mer de Noms. He is listed as a member in the band's DVD/CD release aMOTION.