You may sometimes meet a Korean person who introduces themselves using an English name such as “Jason,” “Emily,” or “Daniel.” However, in many cases, this is not their legal or official name. It is often simply a name they have chosen to make communication easier in an English-speaking environment.
Korean names can be difficult for foreigners to pronounce correctly, especially when they are unfamiliar with Korean pronunciation. Because of this, some Koreans choose an English name when studying, working, or living abroad. The purpose is usually convenience rather than changing their actual name.
This is somewhat different from the way shortened names are commonly used in English-speaking countries. In English, a person named Michael might commonly be called Mike, William might become Will or Bill, and Elizabeth might become Liz or Beth. Shortened or nickname forms are a normal part of everyday communication.
Korean names generally work differently. A typical Korean given name consists of two syllables, so it is already relatively short. For example, Min-jun, Seo-yeon, Ji-ho, and Soo-jin are all two-syllable given names. Because the name is already short, there is usually little practical reason to shorten it further.
In fact, shortening a Korean given name can sometimes sound unusual or unnatural. If someone named Min-jun were suddenly called “Min” or someone named Seo-yeon were called “Seo,” it would not necessarily feel like a natural nickname in Korean. Koreans normally use the person's full given name, or their full name depending on the situation.
There are of course Korean nicknames, and some people do have shortened or special forms of their names among close friends and family. But this is generally more personal and less systematic than the common nickname culture found in English-speaking countries.
This is one reason why an English name used by a Korean person abroad should not necessarily be interpreted as their “real name.” It may simply be a practical tool for communication.
For example, a Korean person named Kim Min-jun might introduce himself as “Jason” while working with American colleagues. His legal name is still Kim Min-jun. He is simply using “Jason” because it is easier for his coworkers to pronounce and remember.
So when you encounter a Korean person using an English name, it is often best to think of it as a convenience name or social name, rather than assuming that the person has officially changed their name.
There is also an interesting cultural difference here. In English-speaking cultures, changing or shortening a first name is often about familiarity and creating a more casual relationship. In Korea, the given name itself is already short enough that shortening it is usually unnecessary. The bigger issue when speaking with foreigners is often pronunciation, not the length of the name.
In other words, a Korean person using an English name abroad is often not trying to replace their Korean identity. They are simply making everyday communication easier in an environment where their Korean name may be unfamiliar or difficult for others to pronounce.
