María Auxiliadora Delgado San Martín (11 March 1937 – 31 July 2019) was an Uruguayan civil servant, health advocate, and wife of President Tabaré Vázquez.

[1] Auxiliadora's signature initiative as First Lady was a national program to improve dental health and oral hygiene.

She oversaw the national campaign, with an emphasis on students from rural schools and communities.

[1][2] Her program, Plan Bucal, which was launched in 2005, has provided dental services to more than 100,000 children across Uruguay, as of 2015.

[3] In December 2015, the General Assembly of Uruguay honored her with an award for her work.