Monastic Sign Language
A language of Vatican State
| Population | No estimate available. |
| Region | Monastic communities, especially in Europe. |
| Dialects | Anglo-Saxon Monastic Sign Language, Augustinian Sign Language, Benedictine Sign Language, Cistercian Sign Language, Trappist Sign Language. |
| Classification | Deaf Sign language |
| Language use | L2 means of communicating while maintaining vows of silence. Not a deaf sign language. |
| Comments | Second language only. |

