Ana María Sempértegui Valdez (born 15 December 1958) is a Bolivian accountant and politician who served as a party-list member of the Chamber of Deputies from La Paz from 2010 to 2015.

[3] She was one of seven children – three girls and four boys – born to Héctor Sempértegui Toro, a mine mechanic stationed at Pailaviri, and his wife Elena Valdez Tardío, a career homemaker.

She gained employment as a bookseller in Buenos Aires before being brought on as an accounting clerk at Termas Villavicencio but ultimately opted to accompany her mother's return trip to Bolivia.

[12] Paredes was elected prefect of the La Paz Department in 2005 and,[13] with his ascent to office early the following year,[14] brought on Sempértegui to an advisory position within the new administration.

[8] At the same time, she also maintained a presence in the civil service as a consultant for the La Paz municipal government [es],[9] as well as her ties to Paredes, as his personal accountant.

[17] In effect, Paredes's party, Plan Progress for Bolivia (PPB), granted CN the legal backing it needed to compete – giving him great latitude to select candidates as he saw fit.

[18] Just as he had done in 2005, Paredes placed members of his innermost circle – up to and including relatives – in the "safety zone" of CN's slate of candidates, regardless of past political experience or public notoriety.

[20] In La Paz, the flight of Paredes – accosted on all sides by criminal cases and investigations – left the band of legislators elected under his watch to fend for themselves.

[24] Sempértegui promoted similar legislation in her capacity as a representative to the Latin American Parliament, where she also elaborated a proposal for the creation of a regionwide network for the protection of child laborers.