Aragoiânia is a municipality in central Goiás state, Brazil.

There are also three highways connection the town with Varjão, Cromínia, Hidrolândia, and Guapó.

It is located in the Goiânia Microregion, at an elevation of 800 meters above sea level.

The reason for European settlement here was the building of a chapel in honor of Santa Luzia.

Later the name was changed to Biscoito Duro (Hard Cookie), because of a popular sweet sought after in the local general store.