Look up flos in Wiktionary, the free dictionary.
Flos is a genus of butterflies in the family Lycaenidae.
Flos may also refer to:
- Flos (book), a 1225 book by Fibonacci
- Flos Greig (1880–1958), Australian lawyer
- František Flos (1864–1961), Czech novelist
- The FLOS, Former Ladies of the Supremes, music group