STRI - syst
- SUCOC
- SUD
- SUDS
- SUE
- sufrace action commander
- SUFSW
- SUIT
- suitability test evaluation
- suitcase emergency procedures trainer
- suitcase emergency trainer
- SUL
- SUM
- SUMCM
- SUMCMO
- summarized spares requirement
- summary
- summary activity account
- summary court-martial
- summary court-martial order
- summary flight test report
- summary management data report
- summary maneuver plan
- summary of information
- summary of Navy approved programs
- summary of radiation tolerant electronics
- summary parts list
- summary plotter
- summary report
- summary sheet
- summary technical report
- SUMMCO
- summer employment youth
- Summerfield Research Station
- SUMS
- sun line-of-sight
- sun-pumped laser
- Sunny Point Army terminal
- SUNS
- sunset gun
- SUNT
