St. Florian may refer to:
People: Saint Florian, 3rd-century Christian saint Florinus of Remüs, 9th-century Catholic saint Friedrich St. Florian (1932–2024), Austrian–American architect
Places named after the 3rd-century saint: Sankt Florian (Linz-Land), city in Austria Sankt Florian am Inn, municipality in Austria St. Florian, Alabama, town in America