Lianzhou (simplified Chinese: 连州; traditional Chinese: 連州; pinyin: Liánzhōu), formerly Lian County or Lianxian (postal: Linhsien; 连县; 連縣; Lián Xiàn), is a county-level city in northern Guangdong Province, China, and is the northernmost county-level division of the prefecture-level city of Qingyuan.

It is known as the host city of the Lianzhou International Photography Festival (LIPF) and as a historic and cultural landmark of Guangdong Province.

During the Han dynasty, which began in 206 BC, the Yangxian prefecture consisted of three cities: Lianzhou, Liannan, and Lianshan.

In 1996, the government of Guangdong Province named Lianzhou as a National Famous Historic and Cultural City.

Called "The First Underground River in Guangdong Province", it has many oddly-shaped stalactites, sea fogs, steep cliffs, old pines, thermal springs, and waterfalls.