María Lorenza Barreneche Iriarte (3 July 1925 – 5 January 2016) was an Argentine public figure and wife of the late President Raúl Alfonsín.

[4] She met her husband, Raúl Alfonsín, a law student who was also born in Chascomús, at a masquerade ball during the 1940s.

Barreneche was unable to attend his state funeral due to her own poor health.

[3] Barreneche had suffered from declining health during her later life, including loss of eyesight and decreased mobility.

[2] President Mauricio Macri tweeted his condolences to her family.