The National Seal of the Republic of Korea (Korean: 대한민국의 국새; Hanja: 大韓民國의 國璽; MR: Taehanmin'gugŭi kuksae) is a governmental seal used for purposes of state in South Korea.

It is used in promulgation of constitutions, designation of cabinet members and ambassadors, conference of national orders and important diplomatic documents.

The first version of the seal, used until the early 1960s, used Hanja characters 大韓民國之璽[a], it was made of silver, and topped by a sapsali for knob.

The third seal the knob was designed as two phoenixes and a hibiscus syriacus, and made of gold.

[3][6][7] The current seal is the fifth version and was designed in September 2011, being adopted in October 2011.