Argentine Tango is a social dance and a musical genre that originated in Argentina and moved to Uruguay and to the rest of the world later on. In the US, it is commonly confused with Ballroom Tango, though this is a later derivation. See History of Tango and Tango music for the origins and development of each. This article describes the dance itself.

Argentine Tango consists of a variety of styles that developed in different regions and eras, and in response to the crowding of the venue and even the fashions in clothing. Even though they all developed in Argentina and Uruguay, they were also exposed to influences reimported from Europe and North America. Consequently there is a good deal of confusion and overlap between the styles as they are now danced - and fusions continue to evolve.