How to write “Theo” in Korean

시오 si-o Listen to 시오, AI voice Print a free worksheet (PDF)

What Korean friends call you

• 시오야 si-o-ya — a friend calling out to you (never to someone older)
• 시오 씨 si-o-ssi — polite: someone you just met, or at work

Calling someone, Koreans add 아 after a final consonant and 야 after a vowel.

1. Watch
2. Trace
3. Write

▶ Watch Skip ✎ Try writing it

Press and hold the picture to save it.

DownloadCopy linkClose

si

o

Listen to 시, AI voice

Korean spellings of Theo

• 시오 7 (54%)
• 테오 6 (46%)

Korean labels of 13 people named Theo on Wikidata (English-speaking countries), October 2026. Wikipedia leans to the official spelling.

Well-known people named Theo, as Wikidata writes them in Korean (November 2026):

• Theo Walcott — 시오 월컷
• Theo Ratliff — 시오 래틀리프
• Theo Robinson — 시오 로빈슨
• Theo Stockman — 시오 스토크먼

32,612 babies were named Theo in the US from 1960 to 2025, the 1105th most common name.

Block by block

• 시 = ㅅ + ㅣ · 3 strokes
  • ㅅ 시옷 (s) · 2 strokes
  • ㅣ 이 (i) · 1 stroke

  Also in 시: Alexis 알렉시스 · Jessica 제시카 · Sydney 시드니

• 오 = ㅇ + ㅗ · 3 strokes
  • ㅇ 이응 (silent / ng) · 1 stroke
  • ㅗ 오 (o) · 2 strokes

  Also in 오: Austin 오스틴 · Owen 오언 · Antonio 안토니오

시오 takes 6 strokes in all.

More names: Phyllis 필리스 · Roland 롤런드 · Constance 콘스턴스 · Shari 샤리 · Dwight 드와이트

Another name? Write any name in Korean →