Southern Han (Chinese: 南漢; pinyin: Nán Hàn; 917–971), originally Great Yue (Viet) (Chinese: 大越), was one of the ten kingdoms that existed during the Five Dynasties and Ten Kingdoms period. It was located on China's southern coast, controlling modern Guangdong and Guangxi. The kingdom greatly expanded its capital Xingwang Fu (Chinese: 興王府; pinyin: Xìngwángfǔ, (present-day Guangzhou). It attempted but failed to annex the Tang province of Annam (modern northern Vietnam).

Liu Yin, was named regional governor and military officer by the Tang court in 905. Though the Tang fell two years later, Liu did not declare himself the founder of a new kingdom as other southern leaders had done. He merely inherited the title of Prince of Nanping in 909.

It was not until Liu Yin’s death in 917 that his brother, Liu Yan, declared the founding of a new kingdom, which he initially called "Great Yue" (大越), but he changed the name to Great Han (大漢) next year (918). It was because his surname Liu (劉) was the imperial surname of the Han dynasty and he claimed himself a descendant of that famous dynasty. The kingdom is often referred as the Southern Han Dynasty throughout China's history.

With its capital at present-day Guangzhou, the domains of the kingdom spread along the coastal regions of present-day Guangdong, Guangxi, Hanoi and the island of Hainan. It not only had borders with the kingdoms of Min, Chu and the Southern Tang, they also bordered the non-Chinese kingdoms of Dali. The Southern Tang occupied all of the northern boundary of the Southern Han after Min and Chu were conquered by the Southern Tang in 945 and 951 respectively.

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