| name | Ethnologue status | language family | office | IETF | alphabet | ISO 6391 | ISO 6392 | ISO 6393 | speakers (people) | Manuscript | micronation | publisher | former country | is a dialect |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Czech language | 1 National | Indo-European languages | Latin script | cs | cze (B)$#$ces (T) | ces | 10,600,000 | Yes | ||||||
| German language | 1 National | Indo-European languages | Latin script | de | ger (B)$#$deu (T) | Variously:$#$deu –Standard German [Standard_German]$#$gmh –Middle High German [Middle_High_German]$#$goh –Old High German [Old_High_German]$#$gct –Alemán Coloniero [Alem%C3%A1n_Coloniero]$#$bar –Austro-Bavarian [Austro-Bavarian]$#$cim –Cimbrian [Cimbrian]$#$geh –Hutterite German [Hutterite_German]$#$ksh –Kölsch [Colognian_language]$#$nds –Low German [Low_German]$#$sli –Lower Silesian [Lower_Silesian_language]$#$ltz –Luxembourgish [Luxembourgish_language]$#$vmf –Main-Franconian [Main-Franconian]$#$mhn –Mócheno [M%C3%B3cheno]$#$pfl –Palatinate German [Palatine_German_language]$#$pdc –Pennsylvania German [Pennsylvania_German_language]$#$pdt –Plautdietsch [Plautdietsch]$#$swg –Swabian German [Swabian_German]$#$gsw –Swiss German [Swiss_German]$#$uln –Unserdeutsch [Unserdeutsch]$#$sxu –Upper Saxon [Upper_Saxon]$#$wae –Walser German [Walser_German]$#$wep –Westphalian [Westphalian_language] | 90,000,000 | Ladonia (micronation) | Yes | |||||
| Silesian language | 6a Vigorous | Indo-European languages | Latin script | szl | 1,250,000 | Yes | ||||||||
| Croatian language | 1 National | Slavic languages | Gaj's Latin alphabet | hr | hrv | hrv | 5 | Yes | ||||||
| Czech Sign Language | 5 Developing | French Sign Language family | cse | cse | 12,000 | Yes |