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