Umlaut may refer to:

Language and writing

* Umlaut (diacritic), a diacritical mark that consists of two dots ( ¨ ) placed over a letter ** Metal umlaut, used in names of heavy metal or hard rock bands for visual rather than phonetic effect * Umlaut (linguistics), a sound change where a vowel was modified to conform more closely to the vowel in the next syllable; in particular: ** I-mutation, a specific type of umlaut triggered by a following high front vowel; in particular: ***

Germanic umlaut The Germanic umlaut (sometimes called i-umlaut or i-mutation) is a type of linguistic umlaut in which a back vowel changes to the associated front vowel ( fronting) or a front vowel becomes closer to (raising) when the following syllable conta ...

, a prominent instance of i-mutation in the history of the Germanic languages ****Umlaut vowel, any front rounded vowel (because such vowels appeared in the Germanic languages as a result of Germanic umlaut) * Two dots (diacritic), the "two side-by-side dots" diacritic, sometimes called an "umlaut", despite its having further linguistic uses, such as diaeresis and schwa.

Other uses

Umlaut (software) Umlaut is an open source front-end for a link resolver for libraries, which deals with advertising services for specific known citations. It runs as Ruby on Rails application via an engine gem. Umlaut accepts requests in OpenURL format, but has no ...

, an open source link resolver front-end for libraries *UMLAUT, Clinton McKinnon's experimental rock band from Australia *Lars Umlaut, a character playable in the '' Guitar Hero'' series of music video games *, an international management and engineering consultancy, before 2019 known as P3 group {{Disambiguation German words and phrases