Francis Julius LeMoyne (September 4, 1798 – October 14, 1879) was a 19th-century American medical doctor and philanthropist from Washington, Pennsylvania.

Responsible for creating the first crematory in the United States, he was also an abolitionist, founder of Washington's first public library (known as Citizen's Library), co-founder of the Washington Female Seminary, and an instrumental benefactor to the LeMoyne Normal and Commercial School (now LeMoyne-Owen College), to which he made a $20,000 (~$425,287 in 2023) donation in 1870.

[6] On October 14, 1879 Julius LeMoyne died of Heart Attack at Washington, Pennsylvania, United States at the age 81.

Deducing that decomposing bodies in local cemeteries were contaminating the water supplies and making the citizens sick,[7] Dr. Lemoyne set out to build the first crematory in the United States.

[8] It still stands today at 49 East Maiden Street, near the campus of Washington & Jefferson College, where it has been converted into a museum.