USC&GS Yukon was a schooner that served as a survey ship in the United States Coast Survey from 1873 to 1878 and in its successor agency, the United States Coast and Geodetic Survey, from 1878 to 1894. She was the pioneering Coast Survey ship in many of the waters of the Territory of Alaska, including the Bering Sea and the western Aleutian Islands, and she also operated extensively in California and Washington. She later entered commercial service as Elwood and was wrecked in 1895.