Em (Cyrillic)
| Em | |
|---|---|
| М м | |
| Usage | |
| Writing system | Cyrillic | 
| Type | Alphabetic | 
| Language of origin | Old Church Slavonic | 
| Sound values | [m], [mʲ] | 
| In Unicode | U+041C, U+043C | 
| History | |
| Development | Μ μ 
 | 
| Transliterations | M m | 
| Other | |
| Associated numbers | 40 (Cyrillic numerals) | 
Em (М м; italics: М м) is a letter of the Cyrillic script.
Em commonly represents the bilabial nasal consonant /m/, like the pronunciation of ⟨m⟩ in "him". Common Glagolitic script is "Ⰿ and Ⱞ"
It is derived from the Greek letter Mu (Μ μ).