In October 2023, the major widely recognized holiday in the United States was Columbus Day / Indigenous Peoples’ Day on Monday, October 9, 2023 , and the popular observance at the end of the month was Halloween on Tuesday, October 31, 2023.

Below is a quick, SEO‑friendly “Quick Scoop”-style breakdown following your post schema.

What Holiday Is In October 2023?

October 2023 in the U.S. featured one federal holiday in the middle of the month and a hugely celebrated cultural observance at the very end. Around the world, there were also numerous religious, international, and cultural days that kept calendars busy across the month.

Key October 2023 Holidays (US Focus)

Main US Federal / Nationwide Dates

  • October 9, 2023 – Columbus Day / Indigenous Peoples’ Day (Monday)
    • Federal holiday in the U.S. (Columbus Day).
    • Many states and cities instead mark Indigenous Peoples’ Day on this same date to honor Native American history and cultures.
  • October 31, 2023 – Halloween (Tuesday)
    • Not an official federal holiday, but one of the most widely celebrated observances, with trick‑or‑treating, costumes, parties, and community events.

Other Notable October 2023 Days (US & International)

Across October 2023, there were many other observances—religious, international, and cultural—though they were not all public holidays. A few examples:

  • International Day of Older Persons – October 1, 2023 (Sunday) – UN observance highlighting issues facing older persons.
  • World Teachers’ Day – October 5, 2023 (Thursday) – UN/UNESCO observance appreciating teachers.
  • World Mental Health Day – October 10, 2023 (Tuesday) – Promotes global mental health awareness.
  • Navratri / Dussehra – mid–late October 2023 (varied by tradition) – Major Hindu festivals that fell during October 2023.
  • United Nations Day – October 24, 2023 (Tuesday) – Marks the UN Charter’s entry into force.

These days mattered for schools, workplaces, and communities that recognize international observances, run awareness campaigns, or observe specific religious calendars.

Mini Timeline: October 2023 Highlights (US-Centric)

  1. Early October (1–10)
    • Oct 1: International Day of Older Persons (UN observance).
 * Oct 2: Child Health Day (US observance).

 * Oct 5: World Teachers’ Day.

 * Oct 9: Columbus Day / Indigenous Peoples’ Day – only U.S. federal holiday in October 2023.
  1. Mid October (11–20)
    • Oct 10: World Mental Health Day (global campaigns and events).
 * Oct 15: Navratri begins (Hindu festival).

 * Oct 16: World Food Day (UN observance on food security).

 * Oct 18: Alaska Day (state holiday in Alaska).
  1. Late October (21–31)
    • Oct 23: Dussehra (Hindu festival).
 * Oct 24: United Nations Day.

 * Oct 27: Nevada Day (state holiday in Nevada).

 * Oct 31: Halloween – widespread cultural celebration.

HTML Table: Major October 2023 US Holidays & Observances

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Date (2023) Day Holiday / Observance Type Where It’s Observed
October 1 Sunday International Day of Older Persons UN observance Global / widely noted in media and institutions
October 2 Monday Child Health Day US observance United States (health and education sectors)
October 5 Thursday World Teachers’ Day UN observance Global, especially schools and education bodies
October 9 Monday Columbus Day Federal holiday United States (federal level; some states)
October 9 Monday Indigenous Peoples’ Day State holiday / observance Multiple US states and cities instead of Columbus Day
Mid–late October Varies Navratri Religious festival Hindu communities worldwide
October 23 Monday Dussehra (Vijayadashami) Religious festival Hindu communities worldwide
October 24 Tuesday United Nations Day UN observance Global institutions and governments
October 27 Friday Nevada Day State holiday Nevada, USA
October 31 Tuesday Halloween Cultural observance United States and many other countries

Forum-Style Angle & Trending Discussion

“So what holiday is in October 2023 anyway?”
For U.S. workers, the practical answer was: Columbus Day / Indigenous Peoples’ Day on October 9 , since that’s the one where many federal employees got a day off.

For families and kids, though, the real star of the month was Halloween on October 31 , with weeks of planning costumes, decorations, and parties leading up to it.

On social platforms and forums, much of the October 2023 talk mixed three threads:

  1. Debates over whether to call the second Monday Columbus Day or Indigenous Peoples’ Day , with more people and institutions shifting toward recognizing Indigenous histories.
  1. Early‑bird Halloween planning: costumes, candy prices, and neighborhood events.
  2. Awareness campaigns tied to World Mental Health Day and World Food Day , often run by NGOs, schools, and workplaces.

Quick SEO Notes

  • Focus keyword: “what holiday is in October 2023” – answer clearly as:
    • Columbus Day / Indigenous Peoples’ Day (Oct 9, 2023, federal/state) and Halloween (Oct 31, 2023, major observance).
  • Related context keywords: “latest news”, “forum discussion”, “trending topic” can connect to:
    • Ongoing renaming from Columbus Day to Indigenous Peoples’ Day and cultural debates around that shift.
* Annual Halloween trends (costume themes, safety tips, spending).

Bottom Note:
Information gathered from public forums or data available on the internet and portrayed here.