- Source: S74
S74 may refer to:
S74 (Long Island bus)
S74 (New York City bus) serving Staten Island
Birrana S74, an Australian speedcar
Expressway S74 (Poland)
Fiat S74, a racing car
HMCS Okanagan (S74), a submarine of the Canadian Forces
Savoia-Marchetti S.74, an Italian airliner
Sikorsky S-74, an American helicopter design
Spanish submarine Tramontana (S74)
S74, a postcode district for Barnsley, England