5O
Appearance
Template:Letter-NumberCombination 5O or 5-O or Five-O can refer to:
- 5O, IATA code for Europe Airpost
- 5-O-Methylgenistein
- 5-O-Methylmyricetin
- 5-O-(4-coumaroyl)-D-quinate 3'-monooxygenase
- 5-O-Methylquercetin; see Azaleatin
- 5-O-caffeoylquinic acid; see Chlorogenic acid
- Cyanidin 3-O-rutinoside 5-O-glucosyltransferase
- Anthocyanin 5-O-glucoside 6'''-O-malonyltransferase
- 5.0, slang for a Ford Mustang GT automobile with a 32-valve 5.0 L engine
- Stylized as "Five-O"
- Hawaii Five-O, an American television police drama airing from 1968 to 1980
- Hawaii Five-O (album), a 1969 album by The Ventures
- Hawaii Five-0, a re-imagining of the 1968 series premiering in 2010
- Five-O, a slang term for police
- Five-O (album), a 1985 Hank Williams, Jr. album
- Five-O (single), a 2007 single by Elephant Man from the album Let's Get Physical