| Se | |
| Letter: | Ս ս |
| Imagealt: | Shghagir variant of Se |
| Script: | Armenian script |
| Type: | Alphabet |
| Typedesc: | ic |
| Language: | Armenian language |
| Phonemes: | [{{IPAlink|s}}] |
| Unicode: | U+054D, U+057D |
| Alphanumber: | 29 |
| Number: | 2000 |
| Usageperiod: | 405 to present |
| Direction: | Left-to-Right |
Se or Seh (majuscule: Ս, minuscule: ս; Armenian: սե) is the twenty-ninth letter of the Armenian alphabet. It has a numerical value of 2000.[1] It represents the voiceless alveolar sibilant (/s/) in both Eastern Armenian and Western Armenian. Created by Mesrop Mashtots in the 5th century AD, it is homoglyphic to the Latin letter U.