ScriptLookup

Thai

ไทย
th 60M speakers

Thai (ไทย) is a Tai-Kadai language with approximately 60M speakers speakers. It is written using the Thai script. Its BCP 47 language code is th.

Thai (ภาษาไทย) is a Tai-Kadai language and the official language of Thailand. It is spoken by approximately 60 million people as a first language, with many more using it as a second language across the country.

Thai is a tonal language with five tones. It is written in the Thai script, an abugida derived from the ancient Brahmi script via the Khmer script. Thai script is notable for its lack of spaces between words — sentence boundaries are marked by spaces instead. Thai has absorbed significant vocabulary from Sanskrit, Pali, Khmer, and English.

Writing Systems Used for Thai

Thai
อักษรไทย
Primary
สวัสดีชาวโลก
LTR Thai

Frequently Asked Questions

What alphabet or script does Thai use?
Thai is written using the Thai script (ISO 15924 code: Thai). Thai is written left-to-right.
What direction is Thai written?
Thai is written Left-to-right. Text runs from left to right, the same direction as most European languages.
How many people speak Thai?
Thai has approximately 60M speakers speakers worldwide. It is a member of the Tai-Kadai language family.
What language family does Thai belong to?
Thai belongs to the Tai-Kadai language family. It is written with the Thai script.
What is the language code for Thai?
The BCP 47 language code for Thai is "th". This code is used in software, web standards (the HTML lang attribute), and internationalization contexts.

Language Facts

BCP 47 Code
th
ISO 639-3
tha
Status
living
Speakers
60M speakers
Language Family
Tai-Kadai
Scripts
1
Primary Script
Thai

Other Thai Languages

kdt kxm lcp lwl sou tts

Data sourced from Unicode CLDR and ISO 639-3. Last updated April 20, 2026.