Carlos Alberto "Chacho" Álvarez (Spanish pronunciation: [ˈkaɾlos ˈtʃatʃo ˈalβaɾes] ⓘ; born 26 December 1948) is an Argentine politician.

His father was a printing worker, and the younger Álvarez's first experience in politics would be in the splinter trade union CGT de los Argentinos, formed in 1968 by Raimundo Ongaro.

Álvarez established Unidos in 1985, a periodical in support of the progressive wing of the Justicialist Party that would become influential in Argentine universities through the student organization APU.

Revelations of bribery on the part of President de la Rúa in the passage of a labour flexibility law bill in 2000 led Álvarez to resign his post on 6 October 2000, denouncing corruption in the administration and in the Senate.

[2] He took office as General Secretary of the Latin American regional trade organization, ALADI (Asociación Latinoamericana de Integración), on 1 September 2011 and served in that capacity for six years.