What Does the Korean Name Seonwoo (선우) Mean?

Seonwoo (선우) has a warm, good-natured sound — gentle and friendly, the kind of name that feels kind by default. It has been a well-loved choice for boys, leading with a syllable that literally means "good" and following it with one that opens onto something vast.

How to say it

In Revised Romanization, 선우 is written Seon-u, and usually spelled Seonwoo or Sun-woo in English. The first syllable, 선, is "suhn," a soft, short sound. The second, 우, is a clean "oo," as in "moon." Together: "Suhn-oo," smooth and unhurried.

What it can mean

The meaning comes from the Hanja, and Seonwoo's options are genuinely warm:

• 선 (善) — good, virtuous, kind-hearted
• 선 (璇) — a fine jade; a bright star
• 선 (宣) — to proclaim, to spread widely
• 우 (宇) — the cosmos, a vast space
• 우 (祐) — heaven's blessing, divine help

Put together, you get readings like a good and boundless spirit (善宇) or virtue and blessing (善祐). The 善 character is the obvious heart of the name — it simply means goodness — and paired with the wide-open 우, it gives Seonwoo a meaning that feels both gentle and large.

Seonwoo wears its kindness on the outside, right there in the first syllable.

A note for the curious

You may also run across 선우 as a rare two-syllable Korean surname, written 鮮于 — one of a small handful of compound family names. As a given name, though, it is the 善 reading that usually shines through, which is why Seonwoo so often reads as warm and good-hearted.

The vibe

Seonwoo reads as gentle, principled, and easy to trust — the friend who does the right thing quietly and makes it look simple. It leans masculine and feels soft without being weak, carrying a steady, good-natured warmth that wears well at any age.

Kindness you can hear

There is a reason Seonwoo strikes people as gentle before they know a word of its meaning: the sounds themselves are soft, all rounded vowels and easy consonants, with nothing sharp to catch on. And then the meaning confirms the feeling — 善, "good, kind-hearted," sitting right at the front. Few names line up sound and sense so neatly; Seonwoo sounds kind and means kind, which gives it an unusually whole, trustworthy quality. It is the sort of name that quietly sets an expectation, a small daily reminder of the goodness a parent hoped for. In a generation of boys' names that have grown softer and warmer, Seonwoo sits near the heart of the shift — proof that gentleness can be its own kind of strength.

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