•
William Borthwick, 1st Lord Borthwick (d. 1470) •
William Borthwick, 2nd Lord Borthwick (d. 1484) •
William Borthwick, 3rd Lord Borthwick (d. 1513) •
William Borthwick, 4th Lord Borthwick (d. 1543) • John Borthwick, 5th Lord Borthwick (d. 1566) •
William Borthwick, 6th Lord Borthwick (d. 1582) • James Borthwick, 7th Lord Borthwick (1570–1599) • John Borthwick, 8th Lord Borthwick (d. 1623) • John Borthwick, 9th Lord Borthwick (1616–1675) (dormant 1675) • William Borthwick,
de jure 10th Lord Borthwick (d. 1690) • William Borthwick,
de jure 11th Lord Borthwick (1666–1706) • Henry Borthwick,
de jure 12th Lord Borthwick (d. 1706) • William Borthwick,
de jure 13th Lord Borthwick (d. 1723) • Henry Borthwick, 14th Lord Borthwick (d. 1772) (confirmed in title 1762; dormant 1772) • Patrick Borthwick,
de jure 15th Lord Borthwick (d. 1772) • Archibald Borthwick,
de jure 16th Lord Borthwick (1732–1815) • Patrick Borthwick,
de jure 17th Lord Borthwick (1779–1840) • Archibald Borthwick,
de jure 18th Lord Borthwick (1811–1863) • Cunninghame Borthwick, 19th Lord Borthwick (1813–1885) (confirmed in title 1870) • Archibald Patrick Thomas Borthwick, 20th Lord Borthwick (1867–1910) (dormant 1910) • William Henry Borthwick,
de jure 21st Lord Borthwick (1832–1928) • Henry Borthwick,
de jure 22nd Lord Borthwick (1868–1937) • John Henry Stuart Borthwick, 23rd Lord Borthwick (1905–1996) (confirmed in title 1986) • John Hugh Borthwick, 24th Lord Borthwick (1940-2025) • James Henry Alexander Borthwick, 25th Lord Borthwick (b. 1940) The
heir apparent is his only son Malcolm Henry Borthwick, Master of Borthwick (b. 1973) ==References==