Concepts and technologies disclosed herein are directed to a field-programmable gate array (“FPGA”)-based biometric sampling system for improving biometric data reusability. The system can include one or more FPGAs, each of which can include a plurality of configurable input/output (“I/O”) blocks, a plurality of configurable logic blocks, and a plurality of configurable interconnects that connect the plurality of configurable I/O blocks to the plurality of configurable logic blocks. The FPGA(s) can be configured based upon a hardware description language model to receive biometric input data associated with a user, to apply a sampling scheme to the biometric input data to extract, from the biometric input data, an enrollment biometric data sample, and to cause the enrollment biometric data sample to be stored in a database.