ISO 639:s

| sre |  |  | B | Y | Sara |   |
| srf |  |  | B | Y | Nafi |   |
| srg |  |  | B | Y | Sulod |   |
| srh |  |  | B | Y | Sarikoli |   |
| sri |  |  | B | Y | Siriano |   |
| srj |  |  | B | Y | Serawai |   |
| srk |  |  | B | Y | Serudung Murut |   |
| srl |  |  | B | Y | Isirawa |   |
| srm |  |  | B | Y | Saramaccan |   |
| srn |  |  | B | Y | Sranan |   |
| sro |  |  | B | Y | Sardinian, Campidanese |   |
| srp | srp | sr | B | Y | Serbian |   |
| srq |  |  | B | Y | Sirionó |   |
| srr | srr |  | B | Y | Serer |   |
| srs |  |  | B | Y | Sarsi |   |
| srt |  |  | B | Y | Sauri |   |
| sru |  |  | B | Y | Suruí |   |
| srv |  |  | B | Y | Sorsogon, Waray |   |
| srw |  |  | B | Y | Serua |   |
| srx |  |  | B | Y | Sirmauri |   |
| sry |  |  | B | Y | Sera |   |
| srz |  |  | B | Y | Shahmirzadi |   |
| ssb |  |  | B | Y | Sama, Southern |   |
| ssd |  |  | B | Y | Siroi |   |
| sse |  |  | B | Y | Balangingi |   |
| ssf |  |  | B | Y | Thao |   |
| ssg |  |  | B | Y | Seimat |   |
| ssh |  |  | B | Y | Arabic, Shihhi Spoken |   |
| ssi |  |  | B | Y | Sansi |   |
| ssj |  |  | B | Y | Sausi |   |
| ssk |  |  | B | Y | Sunam |   |
| ssl |  |  | B | Y | Sisaala, Western |   |
| ssm |  |  | B | Y | Semnam |   |
| ssn |  |  | B | Y | Sanye |   |
| sso |  |  | B | Y | Sissano |   |
| ssp |  |  | B | Y | Spanish Sign Language |   |
| ssq |  |  | B | Y | So'a |   |
| ssr |  |  | B | Y | Swiss-French Sign Language |   |
| sss |  |  | B | Y | Sô |   |
| sst |  |  | B | Y | Sinasina |   |
| ssu |  |  | B | Y | Susuami |   |
| ssv |  |  | B | Y | Shark Bay |   |
| ssw | ssw | ss | B | Y | Swati |   |
| ssx |  |  | B | Y | Samberigi |   |
| ssy |  |  | B | Y | Saho |   |
| ssz |  |  | B | Y | Sengseng |   |
| sta |  |  | B | Y | Settla |   |
| stb |  |  | B | Y | Subanen, Northern |   |
| stc |  |  | B | Y | Santa Cruz |   |
| std |  |  | B | Y | Sentinel |   |
| ste |  |  | B | Y | Liana-Seti |   |
| stf |  |  | B | Y | Seta |   |
| stg |  |  | B | Y | Trieng |   |
| sth |  |  | B | Y | Shelta |   |
| sti |  |  | B | Y | Stieng, Bulo |   |
| stj |  |  | B | Y | Samo, Matya |   |
| stk |  |  | B | Y | Arammba |   |
| stl |  |  | B | Y | Stellingwerfs |   |
| stm |  |  | B | Y | Setaman |   |
| stn |  |  | B | Y | Owa |   |
| sto |  |  | B | Y | Stoney |   |
| stp |  |  | B | Y | Tepehuan, Southeastern |   |
| stq |  |  | B | Y | Saterfriesisch |   |
| str |  |  | B | Y | Salish, Straits |   |
| sts |  |  | B | Y | Shumashti |   |
| stt |  |  | B | Y | Stieng, Budeh |   |
| stu |  |  | B | Y | Samtao |   |
| stw |  |  | B | Y | Satawalese |   |
| sua |  |  | B | Y | Sulka |   |
| sub |  |  | B | Y | Suku |   |
| suc |  |  | B | Y | Subanon, Western |   |
| sue |  |  | B | Y | Suena |   |
| suf |  |  | B | Y | Tarpia |   |
| sug |  |  | B | Y | Suganga |   |
| suh |  |  | B | Y | Suba |   |
| sui |  |  | B | Y | Suki |   |
| suj |  |  | B | Y | Shubi |   |
| suk | suk |  | B | Y | Sukuma |   |
| sul |  |  | B | Y | Surigaonon |   |
| sum |  |  | B | Y | Sumo-Mayangna |   |
| sun | sun | su | B | Y | Sundanese |   |
| suq |  |  | B | Y | Suri |   |
| sur |  |  | B | Y | Mwaghavul |   |
| sus | sus |  | B | Y | Susu |   |
| sut |  |  | B | Ö | Subtiaba |   |
| suu |  |  | B | Y | Sungkai |   |
| suv |  |  | B | Y | Sulung |   |
| suw |  |  | B | Y | Sumbwa |   |
| sux | sux |  | B | A | Sumerian |   |
| suy |  |  | B | Y | Suyá |   |
| suz |  |  | B | Y | Sunwar |   |
| sva |  |  | B | Y | Svan |   |
| svb |  |  | B | Y | Ulau-Suain |   |
| svc |  |  | B | Y | Vincentian Creole English |   |
| sve |  |  | B | Y | Serili |   |
| svk |  |  | B | Y | Slovakian Sign Language |   |
| svr |  |  | B | Y | Savara |   |
| svs |  |  | B | Y | Savosavo |   |
| svx |  |  | B | Ö | Skalvian |   |
| swa | swa | sw | M | Y | Swahili (generic) |   |
| swb |  |  | B | Y | Comorian |   |
| swc |  |  | B | Y | Swahili, Congo |   |
| swe | swe | sv | B | Y | Swedish |   |
| swf |  |  | B | Y | Sere |   |
| swg |  |  | B | Y | Swabian |   |
| swh |  |  | B | Y | Swahili (specific) |   |
| swi |  |  | B | Y | Sui |   |
| swj |  |  | B | Y | Sira |   |
| swk |  |  | B | Y | Sena, Malawi |   |
| swl |  |  | B | Y | Swedish Sign Language |   |
| swm |  |  | B | Y | Samosa |   |
| swn |  |  | B | Y | Sawknah |   |
| swp |  |  | B | Y | Suau |   |
| swq |  |  | B | Y | Sharwa |   |
| swr |  |  | B | Y | Saweru |   |
| sws |  |  | B | Y | Seluwasan |   |
| swt |  |  | B | Y | Sawila |   |
| swu |  |  | B | Y | Suwawa |   |
| swv |  |  | B | Y | Shekhawati |   |
| sww |  |  | B | Y | Sowa |   |
| swx |  |  | B | Y | Suruahá |   |
| swy |  |  | B | Y | Sarua |   |
| sxc |  |  | B | A | Sicanian |   |
| sxe |  |  | B | Y | Sighu |   |
| sxg |  |  | B | Y | Shixing |   |
| sxk |  |  | B | Ö | Kalapuya, Southern |   |
| sxl |  |  | B | Ö | Selian |   |
| sxm |  |  | B | Y | Samre |   |
| sxn |  |  | B | Y | Sangir |   |
| sxo |  |  | B | A | Sorothaptic |   |
| sxr |  |  | B | Y | Saaroa |   |
| sxs |  |  | B | Y | Sasaru |   |
| sxu |  |  | B | Y | Saxon, Upper |   |
| sxw |  |  | B | Y | Gbe, Saxwe |   |
| sya |  |  | B | Y | Siang |   |
| syb |  |  | B | Y | Subanen, Central |   |
| syc |  |  | B | T | Syriac, Classical |   |
| syi |  |  | B | Y | Seki |   |
| syk |  |  | B | Y | Sukur |   |
| syl |  |  | B | Y | Sylheti |   |
| sym |  |  | B | Y | Samo, Maya |   |
| syn |  |  | B | Y | Senaya |   |
| syo |  |  | B | Y | Suoy |   |
| syr | syr |  | M | Y | Syriac |   |
| sys |  |  | B | Y | Sinyar |   |
| syw |  |  | B | Y | Kagate |   |
| sza |  |  | B | Y | Semelai |   |
| szb |  |  | B | Y | Ngalum |   |
| szc |  |  | B | Y | Semaq Beri |   |
| szd |  |  | B | Ö | Seru |   |
| sze |  |  | B | Y | Seze |   |
| szg |  |  | B | Y | Sengele |   |
| szk |  |  | B | Y | Sizaki |   |
| szl |  |  | B | Y | Silesian |   |
| szn |  |  | B | Y | Sula |   |
| szp |  |  | B | Y | Suabo |   |
| szv |  |  | B | Y | Isu (Fako Division) |   |
| szw |  |  | B | Y | Sawai |   |