Unión de San Antonio is a town and municipality located in the Mexican state of Jalisco.

It is named after Saint Anthony of Padua since the first church built there was in his honor.

The main local industry is agriculture, including maize, wheat, beans, and livestock.

Through the hard work of Don Pablo and Don Jose Antonio, they constructed the chapel that became the heart and center of the town and the magnificent church it is today.

[citation needed] At the beginning of the nineteenth century it was known as Hacienda of Saint Anthony of the Adobes and later Villa of Union.