NBSS is short for NetBIOS Session Service.
NBSS may also refer to:
Schools
Naval Base Secondary School, a government school in Yishun, Singapore North Bennet Street School, a private school in Boston, Massachusetts
Other
Canadian National Breast Screening Study, a randomized trial in Canada National Bank Surveillance System, a bank monitoring system Scottish Bible Society, previously known as the National Bible Society of Scotland (NBSS)
See also NBS (disambiguation)