The Legislative Districts of Negros Occidental, namely the first, second, third, fourth, fifth and sixth districts, are the representations of the Province of Negros Occidental in the Philippine House of Representatives. Negros Occidental was divided into three legislative districts from 1907 to 1972, it was redistricted into six legislative districts in 1986. It was part of the representation of Region VI from 1978 to 1984, and from 1984 to 1986 it elected 7 assemblymen at-large. Until 1986, Bacolod City was part of its representation.