Girolamo Amati (1561–1630) was an Italian luthier, active from 1580 to 1630.
Girolamo worked, probably from 1575, with his brother, in his father's workshop.
For about ten years, they co-signed their works with their Latinized names: "Antonius & Hieronymus Amati".
Girolamo slightly increased the size of his instruments, compared to those of his father.
His son, Nicolò Amati (1596-1684), whom he trained in the workshop, was the master of Andrea Guarneri and possibly of Antonio Stradivari and Francesco Rugeri.