al-Dīn, (Arabic: الدين ad-Dīn "the Religion"), a component of some Arabic names, meaning "of the religion". The names concerned are used by Muslims all over the world.
The meaning of the word "Dīn", simply translated "faith", is explained further on the Dīn page.
The Arabic spelling corresponds to the letters "a l d i n", but because the letter "d" is a sun letter the letter "l" is here assimilated to it, and simply lengthens the sound of the "d". The initial vowel, written here as "a", is unstressed and can be transliterated into almost any vowel in the Latin alphabet. Spacing, hyphenation, the insertion of apostrophes and capitalisation are all variable. Commonly occurring representations are:
el Din / eldin / eddin (the definitive article may or may not be capitalized, this is a common transcription which conforms more to the pronunciations of spoken Arabic dialects),
-uddin (particularly in English-speaking south and east Asia),
-uddeen (particularly in English-speaking south and east Asia),
-eddine (particularly in French-speaking areas),
-ettin (particularly in Turkish names),
-od-din (particularly in Persian names),
There are disambiguation & article pages for many of the names concerned, such as:
Use as separate surname:
In modern times in English-speaking environments the name Uddin has sometimes been used as if it was a separate surname. Some examples are:
Pola Uddin, Baroness Uddin (born 1959), British politician,
Keith Uddin (born 1979), British songwriter