Charles Oser

{{Short description|Swiss politician}}

{{More footnotes|date=January 2016}}

{{Infobox Officeholder

| name = Charles Oser

| image = Charles Oser Staatsarchiv Bern FN Jost N 7389.jpg

| imagesize = 200px

| office = 10th Chancellor of Switzerland

| term_start = 1951

| term_end = 1967

| president = Eduard von Steiger
Karl Kobelt
Philipp Etter
Rodolphe Rubattel
Max Petitpierre
Markus Feldmann
Hans Streuli
Thomas Holenstein
Paul Chaudet
Friedrich Traugott Wahlen
Willy Spühler
Ludwig von Moos
Hans Schaffner
Roger Bonvin

| predecessor = Oskar Leimgruber

| successor = Karl Huber

| birth_date = {{birth date|1902|02|17|df=y}}

| birth_place = Sion, Switzerland

| death_date = {{death date and age|1994|03|29|1902|02|17|df=y}}

| death_place = Bern, Switzerland

| party = Free Democratic Party of Switzerland (FDP)

| alma_mater = University of Lausanne
University of Bern}}

Charles Oser (17 February 1902 in Sion, Switzerland – 29 March 1994) was a Swiss politician from the Free Democratic Party of Switzerland (FDP).

Though born in Sitten/Sion, Oser originated from a bourgeois francophone family from Basel {{citation needed|date=November 2017}}. He studied at Lausanne before pursuing legal studies at the Universities of Lausanne and Bern, obtaining his doctorate in 1927.

He was employed at the Federal Chancellery and the Senate in 1928 as secretary-translator, later becoming Vice-Chancellor in 1944. In 1951, after the departure of Chancellor Oskar Leimgruber, he was elected Chancellor, defeating the Catholic-Conservative People's Party candidate, Thurgau Chief Justice Joseph Plattner. Oser did not employ a second francophone vice-chancellor while serving as Chancellor, fulfilling the duties himself.

During his mandate, he began the systematic collection of federal law, which was completed in 1974 under Chancellor Karl Huber and has been sustained continuously. Oser resigned in 1967.