Silvia Beatriz Elías de Pérez (born 10 May 1964) is an Argentine politician who was a National Senator for Tucumán Province from 2013 to 2021.

A member of the Radical Civic Union (UCR), Elías de Pérez first took office on 18 December 2013 in replacement of José Manuel Cano, and completed the remainder of his term until 2015.

Elías de Pérez was the Juntos por el Cambio candidate to the governorship of Tucumán in 2019, but lost against the Justicialist Party incumbent, Juan Luis Manzur.

[5] In the 2009 legislative election, Elías de Pérez was the second candidate to the National Senate in Tucumán for the Social and Civic Agreement list, behind José Manuel Cano.

[13] In 2018, during the first debate on the legalisation of abortion in Argentina, Elías de Pérez had a widely publicised argument with molecular biologist Alberto Kornblihtt during the latter's exposition in the Senate health commission.

[14] At the end of Kornblihtt's presentation, Elías de Pérez asked him if he advocated for the use of abortion for eugenic purposes, such as to avoid the birth of children with Down's syndrome.