Meaning and history
Fanny is a diminutive of Frances, Françoise, or Stéphanie. In the English-speaking world, it became vulgar slang in the late 19th century and has since fallen out of common use as a given name.
Fanny rose from #980 to #878 for girls between 1936 and 1938. Its highest annual birth count came in 1916, with 241 births.