The title of Earl of Angus is an ancient one in the Peerage of Scotland, currently held by the Duke of Hamilton.

Angus was one of the seven original earldoms of the Pictish kingdom of Scotland, said to have been occupied by seven brothers of whom Angus was the eldest. The Celtic line ended with Matilda (fl. 1240), countess of Angus in her own right, who married in 1243 Gilbert de Umfravill and founded the Norman line of three earls, which ended in 1381, the then holder of the title being summoned to the English parliament. Meanwhile John Stewart of Bonkyl, co. Berwick, had been created earl of Angus in a new line. This third creation ended with Margaret Stewart, countess of Angus in her own right, and widow of Thomas, 13th earl of Mar. By an irregular connexion with William, 1st earl of Douglas, who had married Mar's sister, she became the mother of George Douglas, 1st Earl of Angus (c. 1380-1403), and secured a charter of her estates for her son, to whom in 1389 the title was granted by King Robert II. He was taken prisoner at Homildon Hill and died in England. Archibald Douglas, 5th Earl of Angus (1453-1514) was his great-grandson.

William Douglas (1589-1660) 11th Earl of Angus, was created Marquess of Douglas in 1633 (he resigned the title of Earl of Angus and it was recreated with the marquessate, so he was also the 1st Earl of Angus in the new creation). He outlived his son Archibald Douglas, Earl of Angus (c.1609-1655) and was succeeded by Archibald's son James Douglas, 2nd Marquess of Douglas (1646-1699). James' son and heir Archibald Douglas was created Duke of Douglas, Marquess of Angus and Abernethy, Viscount of Jedburgh Forest, Lord Douglas of Bonkill, Prestoun and Robertoun on 10 April 1703. He died without leaving an heir and the titles acquired with the dukedom became extinct. All his other titles devolved to his distant cousin the 7th Duke of Hamilton.

Earls of Angus, First Creation (1115)

• Dufugan, 1st Earl of Angus (d. 1135)
• Gillebride, 2nd Earl of Angus (d. 1197)
• Gilchrist, 3rd Earl of Angus (d. 1210)
• Duncan, 4th Earl of Angus (d. 1214)
• Malcolm, 5th Earl of Angus (d. 1240)
• Matilda, 6th Countess of Angus (d. 1260)
• Gilbert de Umfravill, 7th Earl of Angus (1244-1307)
• Robert de Umfravill, 8th Earl of Angus (1277-1325)
• Gilbert de Umfravill, 9th Earl of Angus (d. 1381)

Earls of Angus, Second Creation (1329)

• John Stewart, 1st Earl of Angus (d. 1331)
• Thomas Stewart, 2nd Earl of Angus (d. 1361)
• Thomas Stewart, 3rd Earl of Angus (d. 1377)
• Margaret Stewart, 4th Countess of Angus (d. 1417) (resigned earldom in 1389)

Earls of Angus, Third Creation (1389)

• George Douglas, 1st Earl of Angus (1378-1402)
• William Douglas, 2nd Earl of Angus (d. 1437)
• James Douglas, 3rd Earl of Angus (d. 1446)
• George Douglas, 4th Earl of Angus (d. 1462)
• Archibald Douglas, 5th Earl of Angus (1453-1514)
• Archibald Douglas, 6th Earl of Angus (1490-1556)
• David Douglas, 7th Earl of Angus (d. 1558)
• Archibald Douglas, 8th Earl of Angus (1556-1588)
• William Douglas, 9th Earl of Angus (1533-1591)
• William Douglas, 10th Earl of Angus (1555-1611)
• William Douglas, 11th Earl of Angus (1590-1660) (created Marquess of Douglas in 1633)

Marquesses of Douglas (1633)

• William Douglas, 1st Marquess of Douglas (1590-1660)
• James Douglas, 2nd Marquess of Douglas (1646-1700)
• Archibald Douglas, 1st Duke of Douglas (1694-1761) (created Duke of Douglas in 1703) (dukedom extinct on his death)
• For later Earls of Angus and Marquesses of Douglas, see Duke of Hamilton

This article incorporates text from the public domain 1911 Encyclopædia Britannica.