São Paulo, Galería Petite, "Willys de Castro/Hércules Barsotti", 1962
Río de Janeiro, Museo de Arte Moderno de Río de Janeiro, "Experiencia Neoconcreta MAM", June 1991
São Paulo, Pavilhão da Bienal, "Bienal de São Paulo" Século XX, 1994
Madrid, Museo Nacional Centro de Arte Reina Sofía, "Versiones del sur. Heterotopías. Medio Siglo sin - lugar: 1918-1968", December 12, 2000 - February 27, 2001
São Paulo,Museu de Arte Moderna de São Paulo, “Paralelos: Arte brasileira da segunda metade do século XX em contexto. Colección Cisneros”, March 21 - June 16, 2002 and tour:
Rio de Janeiro, Museu de Arte Moderna de Rio de Janeiro, July 11 - September 22, 2002
Buenos Aires, Museo de Arte Latinoamericano de Buenos Aires, ”Geo-metrías. Abstracción geométrica latinoamericana en la Colección Cisneros", March 14 - May 19, 2003 and tour:
Montevideo, Museo Nacional de Artes Visuales de Montevideo, July 3 - October 25, 2003
Houston, The Museum of Fine Arts, Houston, "Inverted Utopias. Avant-Garden Art in Latin America", June 20 - September 12, 2004
Aspen, The Aspen Institute, "The Rhythm of Color. Alejandro Otero an Willys de Castro Two Modern Masters in the Coleccion Patricia Phelps de Cisneros", June 29 - November 1, 2006
Mexico City, Museo del Palacio de Bellas Artes, "Cruce de Miradas. Visiones de América Latina en la Colección Patricia Phelps de Cisneros", August 2 - October 21, 2006
Los Angeles, Getty Center, "Making Art Concrete: Works from Argentina and Brazil in the Colección Patricia Phelps de Cisneros", September 16, 2017 - February 11, 2018
Stockholm, Moderna Museet, "Concrete Matters", February 24 - May 13, 2018
MoMA Exh. #2424: "Sur moderno: Journeys of Abstraction—The Patricia Phelps de Cisneros Gift", 3rd Floor, 3 East, October 21, 2019 - September 12, 2020