Cohort

Cohort may refer to:

• Cohort (biology), a taxonomic term in biology
• Cohort (educational group), a group of students working together through the same academic curriculum
• Cohort (military unit), the basic tactical unit of a Roman legion
• Cohort (statistics), a group of subjects with a common defining characteristic — typically age group
• Cohort study, a form of longitudinal study used in medicine and social science
• Cohort Studios, a video game development company
• Generational cohort (demographics), an aggregation of individuals who experience the same event within the same time interval

Cohortes

• Cohortes urbanae, the riot police of Ancient Rome, also pressed into use as a military unit
• Cohortes vigilum, the firefighters and police of Ancient Rome