Gil Montilla (born September 11, 1876 – July 20, 1946) was a Filipino politician who served as Speaker of the National Assembly from 1935 to 1938, and a member of the Philippine Senate
from Negros Occidental from 1931 to 1935.
Prior to his political career, he was president of the Isabela Sugar Company.
A barangay and Gil Montilla National High School in Sipalay City are named after him.