Thee Silver Mt. Zion Memorial Orchestra is a Canadian post-rock band that formed in 1999, originating from Montreal, Quebec. Variations of the name used on the band's releases include A Silver Mt. Zion, The Silver Mt. Zion Memorial Orchestra & Tra-La-La Band, The Silver Mt. Zion Memorial Orchestra and Tra-La-La Band with Choir and Thee Silver Mountain Reveries; the group uses the shorthand SMZ and its name is most often simplified to Silver Mt. Zion. The group has undergone almost yearly personnel changes, evolving by stages from a mostly instrumental trio at the time of its first recordings into an eight-piece group, and then in 2008 into a strongly vocal quintet.
Silver Mt. Zion's music has been described as post-rock, though singer and guitarist Efrim Menuck identifies with the punk rock ethos and aesthetic. The band has released seven studio albums and three EPs, on the record label Constellation.