María Seoane (25 January 1948 – 27 December 2023) was an Argentine economist, journalist, and writer who ventured into film.

She won numerous awards and published eight books on political issues in Argentine history.

Seoane was an OAS consultant, and prepared reports on freedom of expression for the Inter-American Commission on Human Rights.

In 2002, she signed a request from the Journalists' Association criticizing the detention of Ernestina Herrera de Noble by Judge Roberto Marquevich [es], due to the alleged appropriation of two children of disappeared persons.

Seoane's first book, The Night of Pencils (La noche de los lápices), was adapted into a film of the same name by Argentine director Héctor Olivera.