Joaquín Zamacois y Soler (14 December 1894 in Santiago de Chile – 8 September 1976 in Barcelona) was a Chilean-Spanish composer, music teacher and author.
Joaquín Zamacois y Soler was born on 14 December 1894 in Santiago de Chile, but, being of Spanish parents, moved to Barcelona with his family.
He began his musical career under the tutelage of his father, the also music composer Joaquín Zamacois y Zabala (alias J. Casamoz), studying later at Conservatori Superior de Música del Liceu and at Escuela Municipal de Música of the same city.
In 1914, he was named Professor at Liceu, and in 1940 at Escuela Municipal de Música, where he was the director in 1945, transforming it into a Conservatory.
Zamacois is also known for his harmony treatise and various pedagogical texts, used in Spain and Latinamerican countries.