If you have come across the phrase “south korea also known as” while reading about the country, the short answer is that South Korea is officially called the Republic of Korea (ROK), and in Korean it is called Hanguk or, more formally, Daehan Minguk. The name “South Korea” itself is an informal, geography based label rather than the country’s legal name. This distinction matters more than it might seem, especially for anyone preparing to study in South Korea, because official documents, university admission letters, and embassy paperwork almost always use “Republic of Korea,” not the casual “South Korea” that shows up in everyday conversation and news headlines.
Understanding where these names come from also gives you a better sense of the country’s history, its relationship with North Korea, and the cultural identity that shapes daily life there. This guide walks through the official name, the Korean language names, how the North and South diverge, and a few nicknames you are likely to encounter while researching the country.
Republic of Korea: The Official Name
The formal name of the country in English is the Republic of Korea, almost always shortened to ROK in government and academic documents. This name was formally adopted in August 1948, when the state was established in the southern half of the Korean Peninsula following the end of Japanese colonial rule and the subsequent division of the peninsula along the 38th parallel. Before that point, the peninsula had gone through centuries of dynastic rule, Japanese occupation from 1910 to 1945, and a brief period of American military administration in the south immediately after Japan’s surrender.
You will see “Republic of Korea” printed on passports, visa stamps, diplomas, and the letterhead of nearly every government ministry and public university in the country. It also appears on international treaties, Olympic team listings, and United Nations documentation, since this is the name the country uses to represent itself formally on the world stage.
For Indian applicants, this distinction is not just trivia, it has practical consequences. University admission portals, visa application forms, and embassy correspondence typically ask for the “Republic of Korea” rather than “South Korea,” and some forms will reject or flag an application that uses the informal name in a field meant for the legal country name. Taking a few minutes to confirm which name a form expects, and using it consistently across your passport, visa application, and university paperwork, can save you from avoidable delays during the admissions and visa process.
It is also worth knowing that “Republic of Korea” is sometimes abbreviated differently depending on the context. In sports and media, you may see “KOR” as a three letter country code, while “ROK” is more common in political, diplomatic, and military writing. Both refer to the same country and can be used interchangeably once you understand the context.
Hanguk and Daehan Minguk: The Korean Names
In Korean, the country calls itself Hanguk (한국) in everyday speech, and Daehan Minguk (대한민국) in formal or official contexts. Daehan Minguk translates roughly to “Great Han Republic,” and the name carries real historical weight rather than being a modern invention. The “Han” portion traces back to the ancient Samhan confederacies, specifically Mahan, Jinhan, and Byeonhan, three tribal groupings that occupied the southern part of the Korean Peninsula roughly two thousand years ago. By choosing a name rooted in this deep history, the founders of the modern state tied the new republic to a long continuous Korean identity rather than starting from a blank slate.
The shorter form, Hanguk, is what you will hear constantly in daily conversation, on the news, and in casual writing once you are living in the country. Koreans rarely use “Daehan Minguk” outside of formal speeches, national anthems, sporting events, or government documents, much the way an American might say “the States” casually but “United States of America” only in official contexts.
North Korea, by contrast, calls itself “Joseon” (조선), a name that recalls the Joseon Dynasty that ruled the peninsula for over five centuries before Japanese colonization. Koreans in the North refer to South Korea as “Nam Joseon,” meaning South Joseon, reflecting the idea that the peninsula remains conceptually one country under a different name, rather than two entirely separate nations with unrelated identities. This naming choice is a small but telling window into how differently the two governments frame the same shared history.
Picking up a few of these terms early is a small but genuinely useful part of adjusting to Korean culture once you arrive, since names, titles, and the right level of formality matter a great deal in daily interactions. Pairing this basic vocabulary with resources on Korean manners and etiquette will help you understand not just what to call the country, but how to navigate introductions, greetings, and everyday politeness with more confidence from day one.
South Korea vs North Korea: Why the Names Differ
After the peninsula split in 1948, the two governments chose entirely different official names for themselves. The south adopted the Republic of Korea, while the north adopted the Democratic People’s Republic of Korea, commonly abbreviated DPRK. Neither government actually uses “South Korea” or “North Korea” as its own legal name internally. These two terms are shorthand labels used mainly outside the peninsula, particularly in Western media, academic writing, and everyday international conversation, where a simple directional label is easier to use than the full formal names.
This split in naming reflects a deeper political divide. The Republic of Korea positions itself as a constitutional democracy and a continuation of a long Korean tradition under a modern republican government. The Democratic People’s Republic of Korea, despite the word “Democratic” in its name, operates as a single party authoritarian state, and the name itself has drawn plenty of commentary over the decades for how little it reflects the country’s actual political system.
In most Western and international contexts, using the word “Korea” alone typically implies South Korea by default, since it is the country far more frequently discussed in global trade, popular culture, technology, and international education. If you are comparing South Korea’s academic courses against programs in other countries, you will notice that university rankings, brochures, and education fairs almost always use “Korea” in this shorthand way, assuming the Republic of Korea rather than the North.
It helps to keep a simple rule in mind: when clarity matters, such as in legal, academic, or government documents, use the full official names, Republic of Korea and Democratic People’s Republic of Korea. In casual conversation, “South Korea” and “North Korea” remain perfectly understood and widely used, including by Koreans themselves when speaking in English with foreigners.
Other Names and Nicknames You May Encounter
Beyond the official and native language names, South Korea carries a handful of well known nicknames tied to its history, geography, and rapid modern development. “Land of the Morning Calm” is one of the more poetic examples, a loose English translation of an older, romanticized name once used for the broader Korean Peninsula. You will frequently see this phrase in travel writing, tourism brochures, and introductory descriptions of the country aimed at first time visitors.
“Asian Tiger” is a very different kind of nickname, rooted in economics rather than poetry. It refers to South Korea’s remarkably fast industrialization and economic growth from the 1960s through the 1990s, when the country transformed from a war torn, largely agricultural economy into a global leader in electronics, shipbuilding, automobiles, and technology. South Korea is typically grouped alongside Hong Kong, Singapore, and Taiwan as one of the original “Four Asian Tigers,” a term that still appears regularly in business and economics writing today.
This reputation for rapid growth, strong infrastructure, and global cultural influence through K-pop, film, and television is part of why so many international students are drawn to experience student life in South Korea firsthand. Knowing the country’s various names, from the formal Republic of Korea to the everyday Hanguk and the more colorful nicknames, gives you a richer starting point for understanding exactly where you are headed and why the country has built such a strong global reputation.
FAQ: South Korea Also Known As
What is South Korea also known as officially?
Officially, South Korea is the Republic of Korea (ROK). In Korean, it is called Hanguk in everyday speech, or formally Daehan Minguk.
Is “Hanguk” the same as “South Korea”?
Yes. Hanguk is the everyday Korean name that South Koreans use for their own country, equivalent to how “South Korea” functions in English.
Why doesn’t North Korea call itself “North Korea”?
North Korea’s official name is the Democratic People’s Republic of Korea, and people within the country refer to it as “Joseon,” a name drawn from the historical Joseon Dynasty.
Is “Korea” alone usually referring to the South?
In most Western and international contexts, yes. Using “Korea” by itself, without further clarification, is generally understood to mean South Korea, since it dominates international conversation around trade, culture, and education.
Does the name difference affect visa or university applications?
Yes, it can. Many official forms specifically request “Republic of Korea” rather than “South Korea,” so it is worth checking the exact wording required before submitting any application.
If you still have questions about applying to study there or want help preparing your application paperwork correctly, you can contact us directly and our team can guide you through the process.