1. Using Romanization: 션 (Syeon)
This is the most common way to write Sean in Korean. It's a simple transliteration of the English name using the Korean romanization system.
2. Using Korean characters (Hangul): 션 (Syeon)
This method uses Korean characters to write the Romanized form of Sean. It is less common, but can be used for more formal occasions or when you want to emphasize the Korean pronunciation.
Important Note: While both methods are valid, "션 (Syeon)" using Romanization is the most widely used and understood by native Korean speakers.