Agnes of Meissen (born before 1264 – died after September 1332) was a noblewoman, the daughter of Albert II, Margrave of Meissen and his wife Margaret of Sicily.^[1]

Agnes was married with Henry I "the Marvelous" of Brunswick-Grubenhagen, in 1282.^[2] They had 16 children:

• Elizabeth (born c. 1282), married Frederick, Count of Beichlingen
• Otto (born c. 1283, died in or before 1309)
• Albert (born c. 1284, died after 1341), joined the Teutonic Order
• Adelaide (1285–1320), married King Henry I of Bohemia
• Facie (daughter; born c. 1286, died before or in 1312)
• Agnes, Abbess of Osterode
• Henry II, Duke of Brunswick-Lüneburg
• Frederick
• Adelheid of Brunswick, married to Andronikos III Palaiologos
• Conrad (c. 1294 – c. 1320)
• Mechtild (c. 1295 – 14 March 1344), married John II of Werle
• Ernest I, Duke of Brunswick-Grubenhagen
• William, Duke of Brunswick-Grubenhagen
• Richardis, Abbess of Osterode
• Margaret (born c. 1300, died in or after 1312)
• John I, Duke of Brunswick-Grubenhagen