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Mac OS Celtic
Created byEvertype
Current statusAdopted by Apple
ClassificationExtended ASCII
Based onMac OS Roman
Other related encoding(s)Mac OS Gaelic

Mac OS Celtic is a character encoding used by Mac OS to represent Welsh text (like ISO 8859-14), replacing 14 of the Mac OS Roman characters with Welsh characters. This character set was developed by Michael Everson and was used for the Irish localizations of Mac OS 6.0.8 and 7.1 and for the Welsh localization of Mac OS 7.1.


The table below shows the second half of the encoding, the first half (codes 0–127) being ASCII.

Mac OS Celtic[1][2]
0 1 2 3 4 5 6 7 8 9 A B C D E F
8x Ä Å Ç É Ñ Ö Ü á à â ä ã å ç é è
9x ê ë í ì î ï ñ ó ò ô ö õ ú ù û ü
Ax ° ¢ £ § ß ® © ´ ¨ Æ Ø
Bx ± ¥ µ π ª º Ω æ ø
Cx ¿ ¡ ¬ ƒ « » NBSP À Ã Õ Œ œ
Dx ÷ ÿ Ÿ ¤ Ŷ ŷ
Ex · Â Ê Á Ë È Í Î Ï Ì Ó Ô
Fx Ò Ú Û Ù ı Ý ý Ŵ ŵ
  Differences from MacRoman.


  1. ^ Apple, Inc. (2005-04-01). "CELTIC.TXT: Map (external version) from Mac OS Celtic character set to Unicode 2.1 and later". Unicode, Inc.
  2. ^ Everson, Michael (2001-11-10). "CELTIC.TXT: Mac OS Celtic to Unicode table". Evertype.