SS Santa Rosa (later SS Oregonian) was a passenger/cargo ocean liner in service for the Grace Line and later the American-Hawaiian Steamship Company. The vessel also saw military transport service during both both World War I and World War II. Built at William Cramp & Sons Shipbuilding Company in Philadelphia, the vessel was completed in January 1917. She was named Santa Rosa and entered commercial service for the Grace Line. (Two later vessels would also carry the name Santa Rosa for Grace Line.)