Negros Occidental's 4th congressional district

Negros Occidental's 4th congressional district is one of the six congressional districts of the Philippines in the province of Negros Occidental. It has been represented in the House of Representatives since 1987. The district consists of the area in north-central Negros Occidental immediately to the south of the capital city of Bacolod. It contains the cities of Bago and La Carlota, and the municipalities of Pontevedra, Pulupandan, San Enrique and Valladolid. It is currently represented in the 18th Congress by Juliet Marie Ferrer of the National Unity Party (NUP).

Representation history
{| class=wikitable ! rowspan="2" | # ! rowspan="2" colspan=2 | Member ! colspan=2 | Term of office ! rowspan="2" | Congress ! rowspan="2" | Party ! rowspan="2" | Electoral history ! rowspan="2" | Constituent LGUs !Start!!End
 * colspan="9" style="text-align:center;" |
 * colspan="9" style="text-align:center;" |

Negros Occidental's 4th district for the House of Representatives of the Philippines

 * colspan="9" style="text-align:center;" | District created February 2, 1987. Redistricted from Negros Occidental's at-large district.
 * rowspan="3" style="text-align:center;" | 1
 * style="color:inherit;background:;" |
 * rowspan="3" | Edward M. Matti
 * rowspan="3" | June 30, 1987
 * rowspan="3" | June 30, 1998
 * style="text-align:center;" | 8th
 * Lakas ng Bansa
 * Elected in 1987.
 * rowspan=99 style="text-align:center;" | 1987–present Bago, La Carlota, Pontevedra, Pulupandan, San Enrique, Valladolid
 * rowspan="2" style="color:inherit;background:;" |
 * style="text-align:center;" | 9th
 * rowspan="2" | NPC
 * Re-elected in 1992.
 * style="text-align:center;" | 10th
 * Re-elected in 1995.
 * rowspan="3" style="text-align:center;" | 2
 * rowspan="3" style="color:inherit;background:;" |
 * rowspan="3" | Carlos O. Cojuangco
 * rowspan="3" | June 30, 1998
 * rowspan="3" | June 30, 2007
 * style="text-align:center;" | 11th
 * rowspan="3" | NPC
 * Elected in 1998.
 * style="text-align:center;" | 12th
 * Re-elected in 2001.
 * style="text-align:center;" | 13th
 * Re-elected in 2004.
 * rowspan="3" style="text-align:center;" | 3
 * style="color:inherit;background:;" |
 * rowspan="3" | Jeffrey P. Ferrer
 * rowspan="3" | June 30, 2007
 * rowspan="3" | June 30, 2016
 * style="text-align:center;" | 14th
 * NPC
 * Elected in 2007.
 * style="color:inherit;background:;" |
 * style="text-align:center;" | 15th
 * Independent
 * Re-elected in 2010.
 * style="color:inherit;background:;" |
 * style="text-align:center;" | 16th
 * NUP
 * Re-elected in 2013.
 * rowspan="3" style="text-align:center;" | 4
 * rowspan="3" style="color:inherit;background:;" |
 * rowspan="3" | Juliet Marie D. Ferrer
 * rowspan="3" | June 30, 2016
 * rowspan="3" | Incumbent
 * style="text-align:center;" | 17th
 * rowspan="3" | NUP
 * Elected in 2016.
 * style="text-align:center;" | 18th
 * Re-elected in 2019.
 * style="text-align:center;" | 19th
 * Re-elected in 2022.
 * }
 * rowspan="3" | Juliet Marie D. Ferrer
 * rowspan="3" | June 30, 2016
 * rowspan="3" | Incumbent
 * style="text-align:center;" | 17th
 * rowspan="3" | NUP
 * Elected in 2016.
 * style="text-align:center;" | 18th
 * Re-elected in 2019.
 * style="text-align:center;" | 19th
 * Re-elected in 2022.
 * }
 * Re-elected in 2022.
 * }