Joseph Florence Leitner (June 13, 1871 – June 2, 1930) was an American architect whose work includes several rail stations. In Columbia, South Carolina he worked for Charles Coker Wilson (beginning in 1901) for five years. Later he partnered with William J. Wilkins (architect), first in Florence, South Carolina (completing work in Alabama, Georgia, the Carolinas, Florida, and Tennessee) and then in an office in Wilmington, North Carolina, where Leitner practiced for a decade. to form Leitner & Wilkins. His work included commercial, educational, fraternal religious, industrial, residential, and transportation buildings in colonial revival architecture, Flemish architecture (especially gables, Italianate architecture and Romanesque revival architecture styles. He ended his career in Florida.
Leitner was born in Augusta, Georgia. His parents were Major Henry Daniel Leitner and Annie E. Jackson. He attended Emory College School of Technology, which later became Georgia Tech. He began his career in 1893 with Albert Wheeler Todd in Augusta, practicing as part of Todd and Leitner, before establishing his own practice. He married Marie (Birdie) Zachary of Augusta in 1895.
Leitner moved to South Carolina and then North Carolina, where he spent at least 10 years in Wilmington, North Carolina starting in 1906. He work out of the Southern Building.
From 1909 through 1912, Leitner was the official architect for the Atlantic Coast Line Railroad Company doing work in Wilmington, Rocky Mount, and Fayetteville and other locations. He served two terms as president of the North Carolina Architectural Association and was a member of the North Carolina Board of Architecture.