In South Korea in 1985, out of a population of between roughly 40 and 45 million, there were approximately 264,000 people surnamed Heo.
The character used for the name (許) means to permit or advocate.
The Heos traditionally trace their ancestry to Queen Heo Hwang-ok, the wife of King Suro of Geumgwan Gaya, one of ancient kingdoms in Korea.
The Heos are traditionally considered distant kins of the Gimhae Kim clan, who trace their ancestry to the other sons of King Suro.
[2] As with other Korean family names, the Heo clans are distinguished by the place from which they claim to originate.