Tomás Buch (July 7, 1931 – March 5, 2017) was an Argentine chemist and technologist.
In 1955 he settled in San Carlos de Bariloche (province of Río Negro) to be part of the teaching staff of the newly created Institute of Physics Bariloche (today Balseiro Institute) as assistant Chemistry and associate researcher of CNEAIn 1976 he was one of the creators of INVAP.
He is the author of the book "De los quipus a los satélites : historia de la tecnología en la Argentina"