The title Baron Delamer was created once in the Peerage of England and once in the Peerage of Great Britain. It was first created in 1661 for Sir George Booth, Baronet, the Lord Lieutenant of Cheshire. The second baron was created the Earl of Warrington in 1690. The earldom become extinct in 1758, the barony in 1770, and the baronetcy in 1797.

It was created a second time in 1796 as a subsidiary title of the Earl of Warrington (second creation). That title became extinct in 1883.

Booth Baronets (1611)

• Sir George Booth, 1st Baronet (1566-1652)
• Sir George Booth, 2nd Baronet (1622-1684) (created Baron Delamer in 1661)
• Henry Booth, 1st Earl of Warrington (1652-1694)
• George Booth, 2nd Earl of Warrington (1675-1758)
• Nathaniel Booth, 4th Baron Delamer (1709-1770)
• George Booth, 6th Baronet (1724-1797) (baronetcy extinct on his death)

Barons Delamer, first creation (1661)

• George Booth, 1st Baron Delamer (1622-1684)
• Henry Booth, 2nd Baron Delamer (1652-1694) (created Earl of Warrington in 1694)
• George Booth, 2nd Earl of Warrington (1675-1758)
• Nathaniel Booth, 4th Baron Delamer (1709-1770) (barony extinct on his death)

Earls of Warrington, first creation (1694)

• Henry Booth, 1st Earl of Warrington (1652-1694)
• George Booth, 2nd Earl of Warrington (1675-1758) (earldom extinct on his death)

Barons Delamer, second creation (1796)

• see Earl of Stamford