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USC&GS Hydrographer was the name of two United States Coast and Geodetic Survey ships, and may refer to:
- USC&GS Hydrographer (1901), a survey ship in service from 1901 to 1917 and from 1919 to 1928
- USC&GS Hydrographer (1928), a survey ship in service from 1931 to 1942 and from 1946 to 1967
|30px 30px||This article includes a list of ships with the same or similar names. If an internal link for a specific ship led you here, you may wish to change the link to point directly to the intended ship article, if one exists.|