The title Earl of Dalhousie was created in the Peerage of Scotland in 1633. One associated title is Marquess of Dalhousie, created in the Peerage of the United Kingdom in 1838 for the tenth Earl. The Marquessate became extinct when Lord Dalhousie died without male issue. Other titles associated with the earldom are: Lord Ramsay of Dalhousie (created 1618), Lord Ramsay and Carrington (1633) and Baron Ramsay of Glenmark (1875). The former two are in the Peerage of Scotland; the last is in the Peerage of the United Kingdom.

Brechin Castle is the current seat of the Earl of Dalhousie. The former seat, Dalhousie Castle, is still owned by the Ramsay family but has been leased out since the early 20th century.

Earls of Dalhousie (1633)

• William Ramsay, 1st Earl of Dalhousie (d. 1672)
• George Ramsay, 2nd Earl of Dalhousie (d. 1674)
• William Ramsay, 3rd Earl of Dalhousie (d. 1682)
• George Ramsay, 4th Earl of Dalhousie (d. 1696)
• William Ramsay, 5th Earl of Dalhousie (d. 1710)
• William Ramsay, 6th Earl of Dalhousie (c. 1660-1739)
• Charles Ramsay, 7th Earl of Dalhousie (d. 1764)
• George Ramsay, 8th Earl of Dalhousie (d. 1787)
• George Ramsay, 9th Earl of Dalhousie (1770-1838)
• James Andrew Broun-Ramsay, 1st Marquess of Dalhousie (1812-1860)
• Fox Maule Ramsay, 11th Earl of Dalhousie (1801-1874)
• George Ramsay, 12th Earl of Dalhousie (1806-1880)
• John William Ramsay, 13th Earl of Dalhousie (1847-1887)
• Arthur George Maule Ramsay, 14th Earl of Dalhousie (1878-1928)
• John Gilbert Ramsay, 15th Earl of Dalhousie (1904-1950)
• Simon Ramsay, 16th Earl of Dalhousie (1914-1999)
• James Hubert Ramsay, 17th Earl of Dalhousie (b. 1948)