S73 may refer to:
Aircraft
- Bernard S-73, a French racing monoplane
- Savoia-Marchetti S.73, an Italian airliner
- Sikorsky S-73, an American helicopter proposal
Submarines
- HMCS Onondaga (S73), of the Royal Canadian Navy
- INS Arihant (S73), of the Indian Navy
- INS Rachav (S73), of the Israeli Navy
Other uses
Topics referred to by the same termThis disambiguation page lists articles associated with the same title formed as a letter–number combination.If an internal link led you here, you may wish to change the link to point directly to the intended article. Category: