Last reviewed: September 2, 2026
Iran is listed in Southern Asia, within Asia. Its capital is Tehran. This page brings together the most commonly needed identifiers and geography facts in one place, with links to related reference lists.
Where is Iran?
For broad geographic classification, Iran is grouped under Asia and the subregion Southern Asia. Regional labels can vary between statistical and geographic organizations, so this site uses one consistent classification for browsing rather than claiming there is only one valid convention.
What are the country codes for Iran?
The ISO-style two-letter code shown on this page is IR, while the three-letter code is IRN. Two-letter codes are especially common in software, forms and country-code domains; three-letter codes are useful where a more recognizable abbreviation is preferred. See our country code guide for context.
Borders and nearby geography
Iran has the following land-border entries in our source dataset: Afghanistan, Armenia, Azerbaijan, Iraq, Pakistan, Turkey, Turkmenistan. Island states and countries without a land frontier may show no land borders even though they have maritime neighbors.