John Lancaster

John Lancaster may refer to:

• John de Lancaster (MP), Member of Parliament (MP) for Lancashire in 1316
• John Lancaster (died 1424), MP for Suffolk and Norfolk
• John Lancaster (died 1434), MP for Cumberland and Westmorland
• John Lancaster (bishop) (died 1619), 17th-century Anglican Bishop of Waterford and Lismore in Ireland
• John Lancaster (MP) (1816–1884), MP for Wigan
• John Lancaster (writer) (born 1946), British poet and writer
• John L. Lancaster, President of the Texas and Pacific Railroad during the first half of the 20th century
• John Lancaster (Royal Navy officer) (1903–1992)