Alcira Soust Scaffo (4 March 1924 – 30 June 1997) was a Uruguayan teacher and poet who lived in Mexico for more than two decades.
During the occupation of the National Autonomous University of Mexico (UNAM) by the Mexican Army in 1968, she remained hidden for 15 days in a bathroom at the university.
This episode became a notable anecdote of the Mexico 68 movement, and was also included in Roberto Bolaño's novels.