| Byron D. Shear | |
| Office: | 18th Mayor of Oklahoma City |
| Term Start: | December 25, 1918 |
| Term End: | April 7, 1919 |
| Predecessor: | Ed Overholser |
| Successor: | Jack C. Walton |
| Birth Date: | 12 May 1869 |
| Birth Place: | Hillsboro, Wisconsin |
| Death Place: | Oklahoma City, U.S. |
| Party: | Republican |
Byron Delos Shear (May 12, 1869 - June 9, 1929) was an American politician who served as mayor of Oklahoma City, Oklahoma, in the 1910s.
Shear was born on May 12, 1869, in Hillsboro, Wisconsin, conflicting reports have been given on the exact date. His father, Thomas J. Shear, was a member of the Wisconsin State Assembly. In 1892, Shear married Hulda Ludwig. She died in 1901. He married Ida Malinda Cunningham. Shear's brother-in-law, Oscar A. Mitscher, was also mayor of Oklahoma City, and his nephew, Marc Mitscher, was an admiral in the United States Navy. He died on June 9, 1929.
Shear was mayor from December 25, 1918, until April 7, 1919.[1] Additionally, he was a delegate to the 1924 Republican National Convention. He succeeded Ed Overholser and preceded Jack C. Walton as mayor.