Herman, Margrave of Brandenburg, also known as Herman the Tall (c. 1275 – 1 February 1308 at Lübz) was Margrave and co-ruler of Brandenburg with his cousin Otto IV. He was the son of Margrave Otto V and Judith of Henneberg-Coburg.
In 1299, he succeeded his father as co-regent of Brandenburg, which he ruled jointly with his cousin Otto IV. After the death of Duke Bolko I of Jawor, he exercised the guardianship over Bolko's children.
In 1308, war broke out between Brandenburg and Mecklenburg, the so-called North German Margrave War. Herman and Otto invaded Mecklenburg and Herman died during the siege of Lübz. He was buried in the Lehnin Abbey.