ISO/IEC 8859-11:2001,Information technology — 8-bit single-byte coded graphic character sets — Part 11: Latin/Thai alphabet, is part of theISO/IEC 8859 series of ASCII-based standardcharacter encodings, first edition published in 2001. It is informally referred to asLatin/Thai. It is nearly identical to the national Thai standardTIS-620 (1990). The sole difference is that ISO/IEC 8859-11 allocatesnon-breaking space to code 0xA0, while TIS-620 leaves it undefined. (In practice, this small distinction is usually ignored.)

ISO-8859-11 isnot a main registered IANA charset name despite following the normal pattern for IANA charsets based on theISO 8859 series. However, it is defined as an alias^[1] of the close equivalentTIS-620 (which lacks the non-breaking space), and which can without problems be used for ISO/IEC 8859-11, since the no-break space has a code which was unallocated in TIS-620. Microsoft has assignedcode page 28601 a.k.a.Windows-28601 to ISO-8859-11 in Windows.^[2] A draft had the Thai letters in different spots.^[3]

As with all varieties of ISO/IEC 8859, the lower 128 codes are equivalent toASCII. The additional characters, apart from no-break space, are found inUnicode in the same order, only shifted from 0xA1 to U+0E01 and so forth.

The MicrosoftWindows code page874 as well as the code page used in the Thai version of theApple Macintosh,MacThai, are variants of TIS-620 — incompatible with each other, however.

Code values D1, D4-DA, E7-EE arecombining characters.

IBM code page 874 (CP874,IBM-874,x-IBM874), also known asCode page 9066 (IBM-9066),^[5] differs from ISO/IEC 8859-11 in only nine symbols shown boxed in the following table:^[6][7][8]

Code page 1161 (CP1161,IBM-1161), is a variant of IBM code page 874. The only difference is the euro sign (€) in position DE_hex (222).^[12][13]

Windows code page 874 (windows-874,MS874,x-windows-874), known asCode page 1162 (CP1162,IBM-1162) by IBM,^[14][15] is used by Microsoft Windows. It differs from ISO/IEC 8859-11 only by adding the nine symbols shown in the following table:

This is the variant used on theClassic Mac OS.

• LMBCS-11

• ISO/IEC 8859-11:2001
• ISO/IEC 8859-11:1999 - 8-bit single-byte coded graphic character sets, Part 11: Latin/Thai character set(draft dated June 22, 1999; superseded by ISO/IEC 8859-11:2001, published December 15, 2001)
• Windows code page 874
• ISO-IR 166 Thai character set(July 13, 1992, from Thai Standard TIS 620-2533 (1990))
• Standardization and Implementations of Thai Language PDF 175k

• Encodings of Thai
• ISO/IEC 8859
• Computer-related introductions in 2001

• Articles with short description
• Short description matches Wikidata