| Walter Lyon | |
| Order1: | 6th |
| Office1: | Lieutenant Governor of Pennsylvania |
| Term Start1: | January 20, 1895 |
| Term End1: | January 15, 1899 |
| Governor1: | Daniel H. Hastings |
| Predecessor1: | Louis Arthur Watres |
| Successor1: | John P. S. Gobin |
| Office2: | Member of the Pennsylvania Senate |
| Term2: | 1893 |
| Birth Date: | 27 April 1853 |
| Party: | Republican |
Walter Lyon (April 27, 1853 – March 21, 1933) was an American lawyer and politician who served as the sixth lieutenant governor of Pennsylvania as a Republican from 1895 to 1899.[1]
Lyon was born in Shaler Township, Pennsylvania. He was educated at the Wakeam Academy and was admitted to the bar as an attorney in 1876. In 1889, he was appointed as United States District Attorney for the Western District of Pennsylvania. He resigned from this position in 1893 to run for Pennsylvania State Senate; he served in this body for one term until his election as Lieutenant Governor. After leaving politics, he founded the Pittsburgh law firm of Lyon, Hunter & Burke. He later retired to Sewickley, Pennsylvania.[2]