National Father’s Day
Thailand’s Government Public Relations Department states that 5 December, the birthday of the late King Bhumibol Adulyadej The Great, is also observed as Thailand’s National Day and National Father’s Day.
Date and recurrence
5 December every year; 5 December 2026
This authority record treats the observance as a fixed annual date. The same month and day can be reused unless a stronger source changes the rule.
Scope and status
The verified scope stored for this record is Thailand / national observance. The site preserves that boundary and does not infer broader government, global or public-holiday status from the observance name alone.
Also known as
National Father’s Day in Thailand
Topic and context
What this page does not assume
- Keep the source-defined country, community, organizer or institutional scope; do not silently broaden it.
- Do not treat the title alone as proof of government recognition or public-holiday status.
- Do not add a creator, founding story or origin claim unless the supporting evidence establishes it.
Sources
Frequently asked questions
When is National Father’s Day?
5 December every year; 5 December 2026 The stored recurrence guidance is: 5 December.
Does National Father’s Day fall on the same date every year?
The authority record classifies it as fixed annual, so its month and day are reusable unless stronger evidence changes the rule.
Is National Father’s Day an official public holiday?
The authority record verifies it within this scope: Thailand / national observance. That recognition does not by itself make it a statutory public holiday; the site only makes public-holiday claims when the supporting authority record explicitly does so.
Who established or recognizes National Father’s Day?
The stored designation basis is: Thailand’s Government Public Relations Department states that 5 December, the birthday of the late King Bhumibol Adulyadej The Great, is also observed as Thailand’s National Day and National Father’s Day.. Supporting provenance includes Thailand Government PRD — King Bhumibol birthday, National Day and National Father’s Day. The site does not infer a separate creator or founder unless reviewed evidence establishes one.
Is National Father’s Day international or country-specific?
This authority record is country-scoped to Thailand. Its fuller verified scope is: Thailand / national observance.
How is this page verified?
The factual layer is source-backed and keeps its date rule, scope, provenance and editorial guardrails attached to the authority record. This record was checked on 2026-09-08.
Other observances on December 5
These records also resolve to December 5, 2026 under the current authority data.
Bathtub Party Day
Thomas and Ruth Roy’s first-party Wellcat Holidays calendar lists Bathtub Party Day on December 5 and identifies Wellcat Holidays as their created, copyrighted holiday collection.
Global Fat Bike Day
Cycling-community sources describe Global Fat Bike Day as a grassroots celebration held on the first Saturday of December; Flatlands Cycling lists 5 December for 2026.
H.M. King Bhumibol Adulyadej the Great’s Birthday, National Day and Father’s Day
The Bank of Thailand lists 7 December 2026 as the substitution holiday for the 5 December 2026 birthday of King Bhumibol, National Day and Father’s Day.
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A/RES/40/212
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