Thomas Lancaster (died 1583) was an English Protestant clergyman.

Thomas Lancaster may also refer to:

• Thomas Lancaster (died 1610), politician, MP for West Looe (UK Parliament constituency)
• Thomas William Lancaster (1787–1869), vicar of Banbury and fellow of Queen's College, Oxford
• Thomas Percival Lancaster (1877–1968), newspaper publisher and political figure in Ontario
• Thomas, 2nd Earl of Lancaster (1278–1322), one of the leaders of the baronial opposition to Edward II of England

• All pages with titles containing Thomas Lancaster

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