Na Yia district
district in Ubon Ratchathani province, Thailand

Na Yia (Thai: นาเยีย, pronounced [nāː jīa]; Northeastern Thai: นาเยีย, pronounced [na᷇ː ɲi᷇a]) is a district (amphoe) in the central part of Ubon Ratchathani province, northeastern Thailand.
History
Na Yia was separated from Det Udom district to create a minor district (king amphoe) on 31 May 1993.
On 15 May 2007, all 81 minor districts were upgraded to full districts. On 24 August the upgrade became official.
Geography
Neighboring districts are (from the north clockwise): Sawang Wirawong, Phibun Mangsahan, Det Udom and Warin Chamrap.
Administration
The district is divided into three sub-districts (tambons), which are further subdivided into 34 villages (mubans). Na Yia is a township (thesaban tambon) which covers parts of tambon Na Yia. There are a further three tambon administrative organizations (TAO).
Begin with the source’s own compact description: “Na Yia district” is district in Ubon Ratchathani province, Thailand. The dossier treats that line as a proposition to test through district, Ubon and Ratchathani, not as a finished interpretation.
Why this record matters
The phrase “district in Ubon Ratchathani province, Thailand” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Place names and jurisdictional language are key evidence: both can reveal earlier catalogue descriptions and overlooked record series. The source revision retrieved here is dated Apr 6, 2026. The linked authority identifier is Q476160. Authority coordinates are 15.059, 105.060. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1993 and 2007.
Modern boundaries and familiar names can conceal earlier jurisdictions or structures that do not align with the present site. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “Na Yia district”, its source revision and the description used here.
- Expand the search: follow Na Yia district primary sources, Na Yia district archive and district research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Na Yia district”?
- Which earlier names or jurisdictions may reveal additional records?
- Which authority defined the place, boundary or structure at the relevant date?
Search terms from this dossier
This entry incorporates text from “Na Yia district” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.