Mongolian script

Mongolian script/Mongol Bichig
ᠮᠣᠩᠭᠣᠯ ᠪᠢᠴᠢᠭ
Mongolian script/Mongol Bichig; ᠮᠣᠩᠭᠣᠯ ᠪᠢᠴᠢᠭ
	Poem composed and brush-written by Injinash,; 19th century
Script type	Alphabet
Creator	Tata-tonga
Period	c. 1204–1941 (common use); 1941–present (common use in Inner Mongolia; chiefly ceremonial use in Mongolia);
Direction	Vertical top-to-bottom, left-to-right
Languages	Mongolian language
Related scripts
Parent systems	Egyptian hieroglyphs Proto-Sinaitic alphabet Phoenician alphabet Aramaic alphabet Syriac alphabet Sogdian alphabet Old Uyghur alphabet Mongolian script/Mongol Bichig; ; ; ; ; ; ;
Child systems	Galik alphabet; Manchu alphabet Dagur alphabet; Xibe alphabet; ; Clear Script (Oirat alphabet); Vagindra script (Buryat alphabet); Evenki alphabet;
ISO 15924
ISO 15924	Mong (145), Mongolian
Unicode
Unicode alias	Mongolian
Unicode range	U+1800–U+18AF Mongolian; U+11660–U+1167F Mong. Supplement;

The traditional Mongolian script, also known as the Hudum Mongol bichig, was the first writing system created specifically for the Mongolian language, and was the most widespread until the introduction of Cyrillic in 1946. The script has been a co-official script in Mongolia since 2025, alongside the Cyrillic script for the language. It is also the official Mongolian language being taught in the school for Mongolian ethnic students inside Inner Mongolia Autonomous Region in PRC. It is traditionally written in vertical lines from top to bottom, flowing in lines from left to right . Derived from the Old Uyghur alphabet, it is a true alphabet, with separate letters for consonants and vowels. It has been adapted for such languages as Oirat and Manchu. Alphabets based on this classical vertical script continue to be used in Mongolia and Inner Mongolia to write Mongolian, Xibe and, experimentally, Evenki.

Computer operating systems have been slow to adopt support for the Mongolian script; almost all have incomplete support or other text rendering difficulties.