| Honorific-Prefix: | The Honourable |
| Carlos Tan | |
| Office2: | Member of the Philippine House of Representatives from Leyte's 1st district Member of National Assembly (1938–1941) |
| Term Start2: | June 6, 1922 |
| Term End2: | June 2, 1925 |
| Predecessor2: | Francisco D. Enage |
| Successor2: | Juan Veloso |
| Term Start3: | June 2, 1931 |
| Term End3: | September 16, 1935 |
| Predecessor3: | Bernardo Torres |
| Successor3: | Jose Maria Veloso |
| Term Start4: | December 30, 1938 |
| Term End4: | December 30, 1941 |
| Predecessor4: | Jose Maria Veloso |
| Successor4: | District dissolved |
| Term Start5: | May 25, 1946 |
| Term End5: | November 11, 1947 |
| Predecessor5: | Mateo Canonoy |
| Successor5: | José Martínez |
| Term Start6: | December 30, 1953 |
| Term End6: | December 30, 1957 |
| Predecessor6: | Mateo Canonoy |
| Successor6: | Marcelino Veloso |
| Office7: | Senator of the Philippines |
| Termstart7: | December 30, 1947 |
| Termend7: | December 16, 1949 |
| Birthname: | Carlos Salvatierra Tan |
| Birth Date: | 4 November 1893 |
| Birth Place: | Ormoc, Leyte, Captaincy General of the Philippines |
| Nationality: | Filipino |
| Party: | Liberal (1946–1970) Nacionalista (until 1946) |
| Spouse: | Isabel Mirasol |
| Children: | 2 |
| Nickname: | Carling |
| Alma Mater: | Colegio de San Carlos Colegio de San Juan de Letran Manila High School University of the Philippines |
| Profession: | Lawyer |
| Occupation: | Politician |
Carlos Salvatierra Tan (November 4, 1893–June 10, 1976) was a Filipino politician who served as Senator in the 1st Congress of the Philippines.
Carlos Tan was born in Ormoc, Leyte to Pablo Tan and Rosalia Salvatierra.[1]
Tan attended Colegio de San Carlos, Colegio de San Juan de Letran, Manila High School and the University of the Philippines. He is a holder of the degree of Bachelor of Arts and Bachelor of Laws and was admitted to the bar in 1915.
He was married to Isabel Mirasol of Jaro, Iloilo City.
He was elected as municipal councilor of Ormoc, Leyte and later became representative to the Philippine Legislature from Leyte's 1st district from 1922 to 1925 and again from 1931 to 1935. In November 1938, he was elected assemblyman for the same district from 1938 to 1941 and once again representative after the World War II from 1946 to 1947. He was elected Senator in 1947 placing 8th out of the 8 seats up for election but was unseated as per decision of the Senate Electoral Tribunal on December 16, 1949 due to an electoral protest. He later returned as representative of the same district, serving from 1953 to 1957.