Saint Barnabas was an early Christian mentioned in the New Testament.
Saint Barnabas may also refer to:
- St. Barnabas' Church, the name of several churches
- St Barnabas College, the name of several colleges
- St Barnabas Hospital (disambiguation)
- Saint Barnabas Medical Center, in Livingston, New Jersey, U.S.
- St. Barnabas Road, part of Maryland Route 414, U.S.
- St. Barnabas GAC, a Gaelic sports club in Nottingham, England
- St Barnabas (Madzimbabwe) Secondary School, Zimbabwe
- St. Barnabas (Bahamas Parliament constituency)