Weissella[3] is a genus of gram-positive bacteria placed within the family Lactobacillaceae, formerly considered species of the Leuconostoc paramesenteroides group.

[2] The morphology of Weissella species varies from spherical or lenticular cells to irregular rods.

[4] In particular, the cell-free culture supernatant of Weissella confusa shows a number of beneficial characteristics, such as antibacterial potential and anti-inflammatory efficiency.

A number of studies have been done on the safety of the bacterial species, indicating their probiotic potential.

[8] The genus Weissella comprises the following species:[9] The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature[9] and the phylogeny is based on whole-genome sequences.