Jonatan Oscar Roberto Castellano (born May 16, 1985, in Lobería, Buenos Aires Province) is an Argentine racing driver.

[1] He has been a Turismo Carretera driver since 2006, competing with the family team Castellano Power Team with a Dodge Cherokee.

[2] In 2018, he secured the runner-up position behind Agustín Canapino.

[3] He is also a regular driver in Turismo Nacional Clase 3, where he finished third in 2021 and became the champion in 2023 driving a Chevrolet Cruze.

[1][4] He is the son of the former Turismo Carretera champion, Oscar Castellano.