Javier Busto Sagrado (born 1949) was born in Hondarribia in the Basque Country of Spain.

Busto graduated as a medical doctor from Valladolid University. In 1995 he created and founded the women's choir Kanta Cantemus Korua. Known internationally as a composer of music and as a choral conductor, he has presented his compositions at the Fourth World Symposium on Choral Music in Sydney, Australia in 1996, and was guest conductor of the Tokyo Cantat in 2000. His choirs have won first place awards in France, Italy, Austria, and Germany. Busto has served on the jury of composition and choral competitions in Spain, France, Italy and Japan.