| Indicator | Value |
|---|---|
| ISO 3166 alpha-2 | IOISO 3166 [2024] |
| ISO 3166 alpha-3 | No authoritative open source found |
| Capital | Diego GarciaGeoNames [2024] |
| Continent | AsiaGeoNames [2024] |
| Common name | British Indian Ocean TerritoryCIA World Factbook [2025] · 2026 archive |
| Official name | British Indian Ocean TerritoryCIA World Factbook [2025] · 2026 archive |
| Local name | British Indian Ocean TerritoryCIA World Factbook [2025] · 2026 archive |
| Etymology | self-descriptive name specifying the territory's affiliation and locationCIA World Factbook [2025] · 2026 archive |
| Government type | No authoritative open source found |
| Independence | No authoritative open source found |
| National holiday | No authoritative open source found |
| Head of state | No authoritative open source found |
| Currency code (ISO 4217) | USDISO 4217 Currency Codes [2026] |
| Currency | US DollarISO 4217 Currency Codes [2026] |
| Administrative subdivisions | No authoritative open source found |
| Subdivision names | No authoritative open source found |
| Historical overview | No authoritative open source found |
| National symbols | Not applicable to this country |
| National anthem | title: "God Save the King"; lyrics/music: unknown; history: official anthem, as a UK overseas territoryCIA World Factbook [2025] · 2026 archive |
| National colors | Not applicable to this country |
| Citizenship rules | Not applicable to this country |
self-descriptive name specifying the territory's affiliation and location
description: white with six wavy blue horizontal stripes; the UK flag is in the upper-left quadrant; the striped section has a palm tree and yellow crown (the territory's symbols) centered on the right half of the flag meaning: the wavy stripes represent the Indian Ocean; the six blue stripes may stand for the six main atolls of the archipelago
Source: CIA World Factbook (Historical Archive — final edition) · CC0 · Edition 2026-05
