ISO 15919
international standard for transliterating modern Brahmic scripts and other Indic scripts into Latin characters

ISO 15919 is an international standard for the romanization of Indic scripts. Published in 2001, it is part of a series of romanization standards by the International Organization for Standardization.
Overview
Relation to other systems
ISO 15919 is an international standard for the romanization of many Brahmic scripts, which was agreed upon in 2001 by a network of the national standards institutes of 157 countries. However, the Hunterian transliteration system is the "de facto national system of romanization in India" and a United Nations expert group noted about ISO 15919 that "there is no evidence of the use of the system either in India or in international cartographic products."
Another standard, United Nations Romanization Systems for Geographical Names (UNRSGN), was developed by the United Nations Group of Experts on Geographical Names (UNGEGN) and covers many Brahmic scripts.
The ALA-LC romanization was approved by the Library of Congress and the American Library Association and is a US standard. The International Alphabet of Sanskrit Transliteration (IAST) is not a standard (as no specification exists for it) but a convention developed in Europe for the transliteration of Sanskrit rather than the transcription of Brahmic scripts.
As a notable difference, both international standards, ISO 15919 and UNRSGN transliterate anusvara as ṁ, while ALA-LC and IAST use ṃ for it. However, ISO 15919 provides guidance towards disambiguating between various anusvara situations (such as labial versus dental nasalizations), which is described in the table below.
Comparison with UNRSGN and IAST
The table below shows the differences between ISO 15919, UNRSGN and IAST for Devanagari transliteration.
Font support
Only certain fonts support all Latin Unicode characters for the transliteration of Indic scripts according to this standard.
“ISO 15919” enters the record as international standard for transliterating modern Brahmic scripts and other Indic scripts into Latin characters. Crown Archives preserves that source wording while asking what international, standard and transliterating can confirm, complicate or overturn.
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“ISO 15919” is worth following because a concise public description often conceals a longer documentary argument. Here, international, standard and transliterating provides the most credible route into that argument.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Sep 15, 2026. The linked authority identifier is Q930439. None of the 1 selected statements returned an explicit reference. The first chronological checks are 2001.
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This entry incorporates text from “ISO 15919” 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.