A number of ships were named Duke of Lancaster, including:
- Duke of Lancaster, of 556 tons (bm), was launched at Liverpool for Gladstone & Co. She traded with India under a licence from the British East India Company. She was last listed in 1844.
- SS Duke of Lancaster (1895)
- RMS Duke of Lancaster (1927)
- TSS Duke of Lancaster (1955)
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.