SWO or Swo may refer to:
Places
- SeaWorld Orlando, a theme park in Florida, US
- Southwestern Ontario, a region in Canada
Science and technology
- Strict weak ordering, in mathematics
Transport
- Snowdown railway station, Kent, England (National Rail station code: SWO)
- Stillwater Regional Airport (IATA and FAA LID code: SWO)
Other uses
- Socialist Workers Organization (disambiguation)
- Surface warfare officer
- Swo, a language of Cameroon
- Staff Weather Officer, United States Air Force personnel
- Scene World Magazine, a disk magazine for the Commodore 64 computer