Xu (徐) Surname Meaning & Origin

Xu (徐) is a well-known Chinese surname. The character 徐 has its own dictionary meaning, but as a family name it mainly functions as an identifier rather than a literal description of the family.

In Chinese naming tradition, the family name comes first and is shared across generations. For the surname Xu (徐), it’s helpful to understand how Chinese surnames generally formed and why the same surname can show up with different spellings.

It’s also common to see one-character surnames like this one paired with one- or two-character given names. For English readers, the key is consistency: decide on one spelling for official documents and use it everywhere.

Across different periods, families moved for work, study, military service, and trade. These migrations spread surnames widely and also created regional pronunciation differences. Because romanization converts sound into Latin letters, the same surname can appear with multiple spellings in English.

When in doubt, keep the Chinese character as the source of truth and treat different spellings as pronunciation-based variants.

In Mandarin pinyin, it is written Xu. A tone-marked form is Xú.

Below are example full names combining the surname 徐 with common given-name characters (one-character given names shown for simplicity):
– 徐轩 (Xu Xuān) – lofty.
– 徐丽 (Xu Lì) – beautiful.
– 徐然 (Xu Rán) – so; thus.
– 徐婷 (Xu Tíng) – graceful.
– 徐欣 (Xu Xīn) – joyful.
– 徐晨 (Xu Chén) – morning.

Different dialects and romanization systems can produce different spellings for the same surname. Keep the Chinese character (徐) handy to avoid confusion.