What Does the Korean Name Siwoo (시우) Mean?

Siwoo (시우) is one of the gentler modern names — soft, poetic, and a little dreamy. It has climbed quickly in popularity, and it is easy to hear why: it sounds like rain on a window or the first line of a poem.

How to say it

In Revised Romanization, 시우 is written Si-u, and usually spelled Siwoo or Si-woo in English. The first syllable, 시, is "shee." The second, 우, is a clean "oo," as in "moon." Together it is a soft "Shee-oo," with no hard sounds anywhere — part of why it feels so calming.

What it can mean

The meaning shifts with the Hanja a family chooses, and Siwoo has some especially lovely options:

• 시 (詩) — poetry, a poem
• 시 (始) — a beginning, the start
• 우 (雨) — rain
• 우 (宇) — the universe, a vast space

Together they make poetic readings like a poem of rain (詩雨) or the beginning of something vast (始宇). The pairing of 詩 ("poetry") and 雨 ("rain") is a particular favorite for how tender it sounds.

The vibe

Siwoo reads as soft-spoken, creative, and quietly observant — the kind of person who notices small beautiful things. It leans masculine but carries a gentleness that lets it feel fairly neutral, and plenty of families love it for exactly that softness.

A name like Siwoo does not try to impress you. It just settles in quietly and stays.

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