Lujiang County (simplified Chinese: 庐江县; traditional Chinese: 廬江縣; pinyin: Lújiāng Xiàn) is a county in Anhui Province, People's Republic of China, under the jurisdiction of Hefei City. It has a population of 1,200,000 and an area of 2,352 km². The government of Lujiang County is located in Lucheng Town.
Lujiang County has jurisdiction over 17 towns.
One of the most famous Han Dynasty military strategist Zhou Yu was born in the Lujiang District of modern-day Lujiang County in 175 CE, and was buried there upon his death in 210 CE. People from all over the China come to Lujiang to look at with Zhou Yu's reverence.