yes, Bandgap reference is one of voltage reference circuits.
Voltage reference include bangap, cmos voltage reference, R devider, R-Bjt voltagte reference and so on
Bandgap is a very good voltage reference because it is independent of power supply whereby other circuit like MOS or resistor divider also could be a reference voltage but these circuit tend to vary the output once the power supply or process change.
A voltage reference is a circuit that provides a constant voltage. This constant voltage can be dependent upon PVT conditions or can be independent. A resistor divider is an example of PVT dependent reference. A bandgap is also a reference circuit which is very less dependent on PVT conditions.
A band gap reference is generally generated by the difference of the voltage drop of two PN junctions. One being about 8 to 10 times the size of the other. Therefore, one is a PTAT and the other is a CTAT and thus each will compensate for the variations in temperature.