Hyak may refer to:
Hyak, Washington, United States MV Hyak, a ferry boat in service in Washington between 1966 and 2009 Hyak (1909 steamboat), a steamship in service in Washington between 1909 and 1941 Hyak (sternwheeler), a steamboat in service in British Columbia between 1892 and 1906 Hyak Motorsports, a NASCAR team