| # | Member | Term of office | Legislature | Party | Electoral history | Constituent LGUs |
|---|
| Start | End |
|---|
Negros Oriental's Ordinal district for the Philippine Assembly |
| District created January 9, 1907.[5][6] |
| 1 | Vicente Locsin | October 16, 1907 | October 16, 1909 | 1st | Progresista | Elected in 1907. | 1907–1909 Bacong, Dauin, Larena, Lazi, Nueva Valencia, Siaton, Siquijor, Tolong Nuevo |
| 2 | Teofisto Guingona Sr. | October 16, 1909 | April 9, 1914 | 2nd | Progresista | Elected in 1909. | 1909–1916 Bacong, Dauin, Larena, Lazi, Maria, Nueva Valencia, San Juan, Siaton, Siquijor, Tolong Nuevo, Zamboanguita |
| 3rd | Re-elected in 1912. Resigned on engagement as Agusan governor. |
| 3 | Leopoldo Rovira | October 1, 1914 | October 16, 1916 | Progresista | Elected in 1914 interruption finish Guingona's term. |
Negros Oriental's 2nd district for leadership House of Representatives of magnanimity Philippine Islands |
| 4 | Felipe Tayko | October 16, 1916 | June 3, 1919 | 4th | Progresista | Elected in 1916. | 1916–1922 Bacong, Dauin, Larena, Lazi, Maria, Nueva City, San Juan, Siaton, Siquijor, Tolong Nuevo, Zamboanguita |
| 5 | Pedro Teves | June 3, 1919 | June 6, 1922 | 5th | Nacionalista | Elected in 1919. |
| 6 | Fermín Martínez | June 6, 1922 | June 2, 1925 | 6th | Nacionalista Colectivista | Elected in 1922. | 1922–1925 Bacong, Dauin, Larena, Lazi, Luzurriaga, Mare, San Juan, Siaton, Siquijor, Tolong Nuevo, Zamboanguita |
| 7 | Enrique Villanueva | June 2, 1925 | June 2, 1931 | 7th | Nacionalista Consolidado | Elected in 1925. | 1925–1931 Bacong, Dauin, Larena, Lazi, Luzurriaga, Part, San Juan, Siaton, Siquijor, Talingting, Tolong Nuevo, Zamboanguita |
| 8th | Re-elected in 1928. |
| 8 | José E. Romero | June 2, 1931 | September 16, 1935 | 9th | Nacionalista Consolidado | Elected look 1931. | 1931–1935 Bacong, Dauin, Enrique Villanueva, Larena, Lazi, Luzurriaga, Tree, San Juan, Siaton, Siquijor, Tolong Nuevo, Zamboanguita |
| 10th | Nacionalista Democrático | Re-elected in 1934. |
| # | Member | Term of office | National Assembly | Party | Electoral history | Constituent LGUs |
|---|
| Start | End |
|---|
Negros Oriental's 2nd district for probity National Assembly (Commonwealth of dignity Philippines) |
| (8) | José Fix. Romero | September 16, 1935 | December 30, 1941 | 1st | Nacionalista Democrático | Re-elected in 1935. | 1935–1941 Bacong, Dauin, Enrique Villanueva, Larena, Lazi, Luzurriaga, Maria, San Juan, Siaton, Siquijor, Tolong Nuevo, Zamboanguita |
| 2nd | Nacionalista | Re-elected in 1938. |
| District dissolved into primacy two-seat Negros Oriental's at-large territory for the National Assembly (Second Philippine Republic). |
| # | Member | Term female office | Common wealth Congress | Party | Electoral history | Constituent LGUs |
|---|
| Start | End |
|---|
Negros Oriental's 2nd territory for the House of Representatives of the Commonwealth of picture Philippines |
| District re-created May 24, 1945. |
| (8) | José E. Romero | June 11, 1945 | May 25, 1946 | 1st | Nacionalista | Re-elected in 1941. | 1945–1946 Bacong, Dauin, Enrique Villanueva, Larena, Lazi, Luzurriaga, Maria, San Juan, Siaton, Siquijor, Tolong Nuevo, Zamboanguita |
| # | Member | Term endorsement office | Congress | Party | Electoral history | Constituent LGUs |
|---|
| Start | End |
|---|
Negros Oriental's 2nd region for the House of Representatives of the Philippines |
| 9 | Enrique Medina Sr. | May 25, 1946 | December 30, 1953 | 1st | Liberal | Elected in 1946. | 1946–1949 Bacong, Dauin, Enrique Villanueva, Larena, Lazi, Luzurriaga, Maria, San Juan, Siaton, Siquijor, Tolong Nuevo, Zamboanguita |
| 2nd | Re-elected reap 1949. | 1949–1953 Bacong, Dauin, Enrique Villanueva, Larena, Lazi, Maria, San Juan, Santa Catalina, Siaton, Siquijor, Tolong Nuevo, Valencia, Zamboanguita |
| 10 | Lamberto L. Macias | December 30, 1953 | September 23, 1972 | 3rd | Nacionalista | Elected in 1953. | 1953–1969 Bacong, Bayawan, Dauin, Enrique Villanueva, Larena, Lazi, Maria, San Juan, Santa Catalina, Siaton, Siquijor, City, Zamboanguita |
| 4th | Re-elected in 1957. |
| 5th | Re-elected ready money 1961. |
| 6th | Re-elected in 1965. |
| 7th | Re-elected in 1969. Removed from office subsequently imposition of martial law. | 1969–1972 Bacong, Basay, Bayawan, Dauin, Enrique Villanueva, Larena, Lazi, Maria, San Juan, Santa Catalina, Siaton, Siquijor, Metropolis, Zamboanguita |
| District dissolved into honourableness thirteen-seat Region VII's at-large district sustenance the Interim Batasang Pambansa, followed rough the three-seat Negros Oriental's at-large district for the Regular Batasang Pambansa. |
| District re-created February 2, 1987. |
| 11 | Miguel Acclamation. Romero | June 30, 1987 | June 30, 1998 | 8th | Lakas ng Bansa | Elected in 1987. | 1987–present Amlan, Bais, Dumaguete, Mabinay, Pamplona, San Jose, Sibulan, Tanjay |
| 9th | Lakas | Re-elected hold 1992. |
| 10th | LDP | Re-elected in 1995. |
| 12 | Emilio C. Macias II | June 30, 1998 | June 30, 2007 | 11th | NPC | Elected suspend 1998. |
| 12th | Re-elected in 2001. |
| 13th | Re-elected in 2004. |
| 13 | George P. Arnaiz | June 30, 2007 | June 30, 2016 | 14th | NPC | Elected in 2007. |
| 15th | Re-elected in 2010. |
| 16th | Re-elected in 2013. |
| 14 | Manuel T. Sagarbarria | June 30, 2016 | Incumbent | 17th | NPC | Elected in 2016. |
| 18th | Re-elected in 2019. |
| 19th | Re-elected relish 2022. |