| S. w. r. d. Bandaranaike national memorial foundation |
| s.d.bandaranaike foundation(incorporation) |
| saarc regional convention on suppression of terrorism |
| sadaham mithuru samuluwa (incorporation) |
| sahanoda foundation(incorporation) |
| saiva paripalana sabhai |
| sale of goods |
| sales tax |
| salihiya thaikka(incorporation) |
| salt |
| salvation army |
| samadhi community development foundation (incorporation) act |
| samaja sahana padanama (incorporation) |
| samastha lanka international development association (incorporation) |
| samastha lanka sasanarakshaka mandalaya (incorporation) |
| sambuddha jayanthi chaitya trust |
| sammanthurai thableekul islam arabic college (incorporation) |
| samoda foundation (incorporation) |
| samurdhi authority of sri lanka |
| sannases and old deeds |
| sarana buddhist (relief) foundation (incorporation) |
| sareeram sri lanka national foundation (incorporation) |
| sarvodaya trust fund for the advancement of humanity, development and peace (incorporation) |
| saumyamoothi thondaman memorial foundation |
| save the nation contribution |
| save the nation contribution(abolition) |
| savings certificate |
| school development boards |
| school teachers pension |
| science and technology development |
| seamen's welfare fund |
| second amendment to the constitution |
| secretary to the treasury (nomination of representative) |
| secured transactions |
| secured transactions (amendment) act |
| securities and exchange commission of sri lanka act |
| securities council |
| securities exchange of sri lanka(amendment) |
| seed |
| seethawaka maniyangama rajamaha viharastha sanwardhana sabhawa (incorporation) |
| senkadagala eksath bauddha mandalaya |
| serendib educational foundation (incorporation) |
| serendib foundation(incorporation) |
| serendib sufi study circle |
| service contracts |
| service praveni lands |
| service tenures |
| servicemen (collection and disposal of specified property) |
| settlement of debts law |
| seva vanitha movement of sri lanka (incorporation) |
| seventeenth amendment to the constitution |
| seventh amendment to the constitution |
| sex disqualification removal |
| shantha children's education services foundation (incorporation) |
| shipwrecked colonial seamen |
| shop and office employees |
| short titles (numeration) |
| shrama vasana fund |
| sigiriya heritage foundation |
| silk and allied products development |
| silkworm seed |
| sinhala welenda mandalaya |
| sir razik fareed foundation (incorporation) |
| siraj arabic college, oddamavadi(Incorporation) |
| siri anuradhapura bastian pilgrims rest |
| siriniwes prajamithra sahayogitha kendraya (incorporation) |
| sisira jayakody siyapatha foundation (incorporation) act |
| sivali vidyalaya |
| Sivmuni Se Vehera Buddhist Foundation (Incorporation) |
| sixteenth amendment to the constitution |
| sixth amendment to the constitution |
| small claims courts procedure act |
| small tenements |
| social security benefit scheme for media personnel |
| social security board |
| social security contribution levy act |
| social service foundation of wickramashila dharmayathenaya in bandaragama (incorporation) |
| societies |
| Societies Ordinance (Amendment) |
| society of structural engineers of sri lanka (incorporation) |
| society of the apostolic church of sri lanka (incorporation) |
| society of the ceylonese brothers of st. joseph |
| society of the margaya fellowship of sri lanka (incorporation) |
| soil conservation |
| southern development authority of sri lanka |
| special allowances of workers |
| special areas (colombo) development |
| special areas (colombo) development |
| special commodity levy |
| special educational society (incorporation) |
| special fund (voluntary contributions for charitable purposes) |
| special presidential commissions of inquiry |
| special presidential commissions of inquiry law |
| special stamps |
| specified certificate of deposits(tax and other concessions) |
| sports |
| sree narayana guru society |
| sri balabhivurdhi wardana society (incorporation) act |
| sri bodhiraja foundation(incorporation) |
| sri dhammalankara social services foundation (incorporation) |
| sri gangathilaka maha viharastha sasanaraksaka samithiya(incorporation) |
| sri jayewardenepura general hospital board |
| sri jayewardenepura pitakotte eksath avamangalliyadhara (shavakruththiyadhara) samithiya (incorporation) |
| sri kalyani eksath bauddha sangamaya (incorporation) |
| sri kalyanodaya society - kandy (incorporation) |
| sri lanka accounting and auditing standards |
| sri Lanka accreditation board for conformity assessment |
| sri lanka association for the advancement of science |
| Sri Lanka Association Of Professional Social Workers (Incorporation) |
| Sri Lanka Atomic Energy |
| sri lanka baptist church |
| sri lanka broadcasting corporation |
| sri lanka broadcasting corporation(special provisions) |
| sri lanka buddhist vihara devala foundation (incorporation) |
| sri lanka bureau of foreign employment |
| sri lanka campus crusade for christ(incorporation) |
| sri lanka cancer society(incorporation) |
| sri lanka chamber of small industry (incorporation) |
| sri lanka chamber of small industry(incorporation) |
| sri lanka council for agricultural research policy |
| sri lanka council of archaeologists (incorporation) |
| sri lanka disaster management |
| sri lanka economic association (incorporation) |
| sri lanka electricity |
| sri lanka energy managers' association (incorporation) |
| sri lanka ex-servicemen's association |
| sri lanka ex-servicemen's institute |
| sri lanka export credit insurance corporation |
| sri lanka export development |
| sri lanka eye foundation(incorporation) |
| sri lanka federation of the visually handicapped (incorporation) |
| sri lanka federation of university women (incorporation) |
| sri lanka foundation |
| sri lanka fruit board |
| sri lanka institute of advanced technological education |
| sri lanka institute of architects law |
| sri lanka institute of co-operative management |
| Sri Lanka institute of credit management(incorporation) |
| sri lanka institute of development administration |
| sri lanka institute of interior designers(incorporation) |
| sri lanka institute of landscape architects |
| sri lanka institute of local governance |
| sri lanka institute of marketing |
| sri lanka institute of printing |
| sri lanka institute of strategic studies |
| sri lanka institute of taxation(incorporation) |
| sri lanka inventors incentives |
| sri lanka islamic centre(incorporation) |
| sri lanka islamic renaissance movement association (incorporation) |
| sri lanka judges institute |
| sri lanka land reclamation and development corporation |
| sri lanka land reclamation and development corporation (amendment) |
| sri lanka library association |
| sri lanka malay association rupee fund |
| sri lanka malay association rupee fund (incorporation) law |
| sri lanka nurses council |
| sri lanka ports authority |
| Sri Lanka Ports Authority(special provisions) |
| sri lanka press council |
| sri lanka railways authority |
| sri lanka rupavahini corporation |
| sri lanka sahitya mandalaya |
| sri lanka samata setha foundation (incorporation) |
| sri lanka samodaya foundation (incorporation) |
| sri lanka society for numismatic studies(incorporation) |
| sri lanka society for the prevention of cruelty to animals (incorporation) |
| sri lanka standards institution |
| sri lanka state plantations corporation |
| sri lanka state trading corporations |
| sri lanka sumithrayo(incorporation) |
| sri lanka sustainable development act |
| sri lanka sustainable energy authority |
| sri lanka tea board |
| sri lanka telecommunications |
| sri lanka transport board |
| sri lanka united malay organisation(incorporation) |
| sri lanka working journalist association (incorporation) |
| sri lanka-nippon educational and cultural centre (incorporation) |
| sri narada bauddha madhyasthana vihara sanwardana sabhawa (incorporation) |
| sri punniyawardhana samithiya of matale |
| sri punyodaya samitiya(incorporation) |
| sri rathnajothi community development and social foundation (incorporation) |
| sri sarananda development foundation (incorporation) |
| sri sarananda foundation(incorporation) |
| sri saranankara development foundation (incorporation) |
| sri shakyasinharama viharastha karyasadhaka sanvidanaya (incorporation) act |
| sri subodharama sasana seva samithiya (incorporation) |
| sri sugatha community development foundation (incorporation) |
| sri sumangala schools |
| sri sunethra mahadevi piriven rajamaha vihara sasana development society(incorporation) |
| sri tax |
| st. andrews church |
| st. thomas' college |
| stamp duty |
| stamp duty (special provisions) |
| stamps |
| state (liability in delict) |
| state agricultural corporations |
| state debtors |
| state film corporation |
| state gem corporation |
| state industrial corporations |
| state land (claims) |
| state landmarks |
| state lands |
| state lands (recovery of possession) |
| state lands encroachments |
| state mortgage and investment bank |
| state mortgage bank |
| state printing corporation |
| statistics |
| statutory reprints |
| stay-in strikes |
| stock |
| strategic development projects |
| street collections |
| students (higher education) loan fund |
| suburban dairies and laundries |
| sugarcane research institute |
| sugathadasa national sports complex authority |
| sukhitha subasadhaka sangamaya (incorporation) |
| superior courts complex board of management |
| superior major of the silvestro-benedictine congregation in sri lanka |
| supplementary allowance of workers |
| suppression of terrorist bombings |
| suppression of unlawful acts against the safety of maritime navigation |
| suppression of unlawful acts of violence at airports serving international civil aviation |
| supreme court (vacation's) |
| supreme court appeals (special provisions) |
| surcharge on income tax |
| surcharge on wealth tax |
| surcharge tax act |
| survey act |
| surveyors |
| surveyors' institute sri lanka(incorporation) |
| suwa sahana sewa foundation (incorporation) |
| suwasetha social service association(incorporation) |