| St Mary's Cathedral, Galle - Centenary Souvenir 1874-1974 | N/A | N/A | 1974 | Religion |
| St Mary's Church, Dehiwala 1836 - 2011, 175th Jubilee Edition | N/A | N/A | 2011 | Religion |
| St Mary\'s Church, Bambalapitiya, Centenary Celebration, 1908 - 2008 | N/A | N/A | 2008 | Religion |
| St Mary\'s Church, Kopay 1852-2012 | N/A | N/A | 2012 | Religion |
| St Patrick's College, Jaffna, Alumni Association Ontario Canada | N/A | N/A | 2012 | General |
| St Peter's College Welfare Society - Golden Jubilee Souvenir | Srinath | Fernando | 2010 | General |
| St Peter\'s College Colombo, 11922-2022, 100 Years. | N/A | N/A | 2022 | General |
| St Thomas the Apostle Church, Colombo | C. | Henry | 1915 | Religion |
| St Xavier's Church - 125 Years in Nuwara Eliya, Souvenir | Theodore A., Rev Fr | Pieris | 1973 | Religion |
| St. Anne of Talavila - A Historical Sketch of the Shrine | Edmund, The Rt. Rev.Dr | Peiris | 1950 | Religion |
| Staff Studies - Vol 7, No 2, 1977 | Central Bank of Ceylon | N/A | 1977 | General |
| Staff Studies - Vol 8, No 1, 1978 | Central Bank of Ceylon | N/A | 1978 | General |
| Staff Studies - Vol 8, No 2, 1978 | Central Bank of Ceylon | N/A | 1978 | General |
| Stamps on Flora & Fauna of Sri Lanka | D. C. | Ranatunga | 2015 | General |
| Standing Orders of the Parliament of the Democratic Socialist Republic of Sri Lanka | N/A | Parliament Secretariat | 1993 | Politics |
| Star In The East - Rev Fr Joseph Vaz | W.L.A., Rev Fr | Don Peter | 1995 | Religion |
| Star Sapphire & Other Stories | Anandatissa | de Alwis | 1970 | Literature |
| State & Peasant Politics in Sri Lanka, The | Mick | Moore | 1985 | Politics |
| State & Religion in Ceylon Since 1825, The | Tennakoon, Prof | Vimalananda | 1970 | Religion |
| Statement & Accounts of the Widows & Orphans Pension Fund, 1906 | Govt of Ceylon | N/A | 1907 | General |
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