Tam Kung (Chinese: 譚公; lit. 'Lord Tam') or Tam Tai Sin (譚大仙) is a sea deity worshiped in Hong Kong and Macau.
In Chinese folk legends, Tam Kung was one of gods who could forecast the weather. He was born in Huizhou Prefecture. It was said that he could cure patients in his childhood. Tam Kung became an immortal in heaven at the age of twenty in the Nine-dragon Mountain in Huizhou. He was officially deified during the Qing dynasty. People whose ancestral home are in Huizhou or Chaoshan of Guangdong province worship Tam Kung most sincerely.