Biblioteca Nacional de la República Argentina Clorindo Manuel José Testa (December 10, 1923 – April 11, 2013) was an Italian-Argentine architect and artist.

[citation needed] His style as an architect has always been influenced by his artistic nature, with projects dominated by the effects of colour, tension, metaphors and plasticity; these aspects are well illustrated in his designs for the Biblioteca Nacional de la República Argentina and the Banco de Londres building in Buenos Aires.

He was member of the international jury which chose Carlos Ott as the architect for the Opera Bastille in Paris.

He died, aged 89, in Buenos Aires, Argentina.

He graduated from the Faculty of Architecture at the Universidad de Buenos Aires in 1948.