October 2026 in South Korea
4 holidays / observances this month. Notable dates include National Foundation Day, National Foundation Day (substitute day), Hangul Day, and more. See the full 2026 calendar or holidays list.
Calendar
October 2026 — South Korea
Full October 2026 calendar for South Korea. Tap a marked day for holiday details.
Public / federal holidayObservanceInternational dayToday
October 2026
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Holidays in October
4 dates
National Foundation Day
Sat, Oct 3 · Public holiday
National Foundation Day (substitute day)
Mon, Oct 5 · Public holiday
Hangul Day
Fri, Oct 9 · Public holiday
Halloween
Sat, Oct 31 · Observance