Lemmini is a tribe of lemmings in the subfamily Arvicolinae. Species in this tribe are: Tribe Lemmini The fossil taxa Mictomys, Tobienia (both thought to be allied with Synaptomys), and Plioctomys (thought to be allied with Lemmus and Myopus) are also thought to belong to this group. A 2021 phylogenetic study using mtDNA recovered Lemmini as being the most basal clade of the Arvicolinae, diverging during the late Miocene, about 8 million years ago.