María Gardenia Arauz Menacho (born 13 March 1972) is a Bolivian politician and trade unionist who served as a substitute member of the Chamber of Deputies from Beni, representing circumscription 63 from 2010 to 2014.

Born in San Borja, Arauz played an active role in union organizing around the Ballivián Province, culminating in her election as head of the region's peasants' federation in 2008.

[4] The pair ran to represent circumscription 63 of Beni, a district encompassing large portions of the Arauz's native Ballivián Province, as well as sections of neighboring Vaca Díez and Yacuma.

In 2012, she denounced that, the previous year, the then-president of the lower chamber, Héctor Arce, had attempted to dissuade her from inspecting alleged tax evasion at the state-run Manquiri Mining Company.

[12] The pact garnered LPB's members select candidacies on the MSM's parliamentary lists; Arauz was given the top slot on its slate of Chamber of Deputies candidates in Beni,[13][14] for which she resigned her seat as a substitute.

[2] The party, born of a separate faction of MAS dissidents led by Félix Patzi,[22] achieved important victories in the Amazonian departments of Beni and Pando by "loaning" its acronym to individually popular local candidates.