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