Elisabeth of Brandenburg (c. 1206 – 1231) a member of the House of Ascania.
She was a Margravine of Brandenburg by birth and by marriage Landgravine of Thuringia.
She was the daughter of Margrave Albert II of Brandenburg and his wife Matilda of Groitzsch, the daughter of Landgrave Conrad II of Lusatia from the House of Wettin.
In 1228, she married Landgrave Henry Raspe of Thuringia, the later anti-king of Germany.
All three of his marriages were childless and after his death, the Emperor enfeoffed Thuringia to Henry III, the son of Henry Raspe's sister Jutta.