Philippines's 12th senatorial district
Philippines's 12th senatorial district, officially the Twelfth Senatorial District of the Philippine Islands (), was one of the twelve senatorial districts of the Philippines in existence between 1916 and 1935. Unlike the first eleven districts which elected two members each to the Senate of the Philippines, the upper chamber of the bicameral Philippine Legislature under the Insular Government of the Philippine Islands, the two senators from this district were appointed by the Governor-General of the Philippines to serve indefinite terms in the 4th to 10th legislatures. The district was created under the 1916 Jones Law to represent the non-Christian tribes of the northern Luzon provinces of Mountain Province and Nueva Vizcaya, the city of Baguio, and the Moro people and other non-Christian tribes of the Department of Mindanao and Sulu provinces of Agusan, Bukidnon, Cotabato, Davao, Lanao, Sulu and Zamboanga.

The district was represented by a total of ten senators throughout its existence. It was abolished in 1935 when a unicameral National Assembly was installed under a new constitution following the passage of the Tydings–McDuffie Act which established the Commonwealth of the Philippines. Since the 1941 elections when the Senate was restored after a constitutional plebiscite, all twenty-four members of the upper house have been elected countrywide at-large. It was last represented by Datu Balabaran Sinsuat of the Nacionalista Demócrata Pro-Independencia and Juan Gaerlan of the Nacionalista Democrático.
Q7450077
senatorial districts of the Philippines
Concept
Q1418426
Senate of the Philippines
MEDIA
Q1710866
Philippine Legislature
MEDIA
Q6042084
Insular Government of the Philippine Islands
ORG
Q1542521
Governor-General of the Philippines
PER
Q4639404
4th
EVE
Q4547132
10th
EVE
Q2975536
Jones Law
MEDIA
Q125384
Luzon
LOC
Q13861
Mountain Province
LOC
Q13866
Nueva Vizcaya
LOC
Q1822
Baguio
LOC
Q1048545
Moro people
Concept
Q5260398
Department of Mindanao and Sulu
LOC
Q16622599
Agusan
LOC
Q13753
Bukidnon
LOC
Q25212591
Cotabato
LOC
Q15095071
Davao
LOC
Q6482885
Lanao
LOC
Q13887
Sulu
LOC
Q8065725
Zamboanga
LOC
Q1116283
National Assembly
ORG
Q3545938
Tydings–McDuffie Act
PER
Q146328
Commonwealth of the Philippines
LOC
Q7185224
1941 elections
UNK
Q7185289
constitutional plebiscite
Concept
Q3682992
at-large
Concept
Q302210
Nacionalista Demócrata Pro-Independencia
ORG
Q302210
Nacionalista Democrático
ORG
Q96399222
Philippines's 12th senatorial district
UNK
1916-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1916
DATE
1935-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1935
DATE
1916-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1916
DATE
1935-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1935
DATE
1941-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1941
DATE
+12^^http://www.w3.org/2001/XMLSchema#decimal
12
NUMBER
+4^^http://www.w3.org/2001/XMLSchema#decimal
4
NUMBER
+10^^http://www.w3.org/2001/XMLSchema#decimal
10
NUMBER
instance of
inception
located in the administrative territorial entity
located in the administrative territorial entity
located in the administrative territorial entity
located in the administrative territorial entity
located in the administrative territorial entity
located in the administrative territorial entity
located in the administrative territorial entity
legislative body