Em (àü; italics: àü or <span style="font-family: times, Times New Roman, serif; font-size: larger">àü</span>; italics: <span style="font-family: times, Times New Roman, serif; font-size: larger">àü</span>) is a letter of the Cyrillic script.
Em commonly represents the bilabial nasal consonant , like the pronunciation of in "him".
It is derived from the Greek letter Mu (àü).
The capital Cyrillic letter Em (àü) looks the same as the capital Latin letter M (M m) but, as with most Cyrillic letters, the lowercase form is simply a smaller version of the uppercase letter.
As used in the alphabets of various languages, Em represents the following sounds:
The pronunciations shown in the table are the primary ones for each language; for details consult the articles on the languages.