Leslie P. Ross was an American politician who served in the Oklahoma House of Representatives and as the 1st Mayor of Lawton, Oklahoma.

He was also a Democratic candidate in the 1910 Oklahoma gubernatorial election.

Leslie P. Ross was born on February 4, 1863, in Camden, Arkansas.

His father was a confederate veteran and county sheriff.

He was elected the first Mayor of Lawton on October 24, 1901.