Altaic peoples are the peoples who speak Altaic languages (note that the existence of the Altaic language family as a genetically related group is controversial).
The term Turco-Mongol refers to Turkic and Mongolic peoples or tribes in combination, in particular in the context of the migration period Huns, which were comprised of unions of multiple ethnicities of Altaic clans, and the medieval Mongol Empire ("Turco-Mongol Empire").