The Unchanging Sea
- Tahun: 1910
- Negara: United States of America
- Genre: Drama
- Studio: American Mutoscope & Biograph
- Kata kunci: based on song, poem or rhyme, silent film, passage of time, loss of memory
- Pengarah: D.W. Griffith
- Pelakon: Arthur V. Johnson, Linda Arvidson, Mary Pickford, Gladys Egan, Charles West, Dell Henderson