> Also, in (South) Korea, depending upon the person's preference, they may choose to do family name first or last. It's crazy. I don't know why. (Can someone explain it to me?)
In Korean, the family name comes first, then the given name. (There are no middle names.) It is almost always a single-character surname (Kim, Lee, etc.) and a two-character given name, though there are exceptions, with a small minority of surnames being two characters, and a small minority of given names being one character.
Romanization rules have changed over the years. The first president of the modern Republic of Korea was Syngman Rhee, with his given name Syngman first (with no spaces or hyphens) and family name Rhee last. Then take Park Chung Hee, the third president, in office in the 60s and 70s; his family name is Park, and his given name is Chung Hee. A few presidents later, you have Roh Tae-woo, in office around the 90s, with family name Roh and given name Tae-woo; notice the hyphenation. The current president is Yoon Suk Yeul, back to not having a hyphen to join the two characters of his given name.
Sometimes it depends on when it was that someone was first issued a passport, because the government is loathe to change the way someone's romanized name is spelled after the first issuance.
> with a small minority of surnames being two characters
I was confused for a long time when I saw the name of Namkoong Min, I thought they wrote it reversed for some reason. Now that he's in the news again, I realized Namkoong 남궁 is the family name -- never seen one like this before.
In Korean, the family name comes first, then the given name. (There are no middle names.) It is almost always a single-character surname (Kim, Lee, etc.) and a two-character given name, though there are exceptions, with a small minority of surnames being two characters, and a small minority of given names being one character.
Romanization rules have changed over the years. The first president of the modern Republic of Korea was Syngman Rhee, with his given name Syngman first (with no spaces or hyphens) and family name Rhee last. Then take Park Chung Hee, the third president, in office in the 60s and 70s; his family name is Park, and his given name is Chung Hee. A few presidents later, you have Roh Tae-woo, in office around the 90s, with family name Roh and given name Tae-woo; notice the hyphenation. The current president is Yoon Suk Yeul, back to not having a hyphen to join the two characters of his given name.
Sometimes it depends on when it was that someone was first issued a passport, because the government is loathe to change the way someone's romanized name is spelled after the first issuance.