| Czech Sign Language | |
| States: | Czech Republic |
| Region: | Central Europe |
| Speakers: | 12,000 |
| Date: | 2011 census |
| Ref: | e18 |
| Speakers2: | 10,000 (2014) |
| Familycolor: | Sign |
| Fam1: | French Sign |
| Fam2: | Austro-Hungarian Sign |
| Iso3: | cse |
| Glotto: | czec1253 |
| Glottorefname: | Czech Sign Language |
| Nativename: | Český znakový jazyk |
Czech Sign Language (ČZJ) is the sign language of the deaf community in the Czech Republic. It presumably emerged around the time of the first deaf school in Bohemia (1786). It belongs to the French sign-language family and is partially intelligible with French sign language.[1] Despite the similarity of oral Czech and Slovak, it is not particularly close to Slovak Sign Language.