| Name | Date | Month | Icon | Bios |
| SAKELLARIOS (Sakellarios, Sakellaris) | 0 | not known | | |
| SALOMI (Salomi) | 3 | August | | |
| SAMUEL (Samouel, Samuel, Sam) | 20 | August | | |
| SAPFO (Sapho) | 1 | September |  |  |
| SARAFIANOS (Sarafianos) | 0 | not known | | |
| SARAH (*) (2) (Sarah) | 14 | December |  |  |
| SARAH (1) (Sarah) | 13 | July | | |
| SARANTIS (Sarantis, Sarantos) | 16 | August | | |
| SARANTOS (Sarantos, Sarantis) | 9 | March | | |
| SARAPION (Sarapion) | 0 | not known | | |
| SARPIDON (Sarpidon) | 0 | not known | | |
| SATNIOS (Satnios) | 0 | not known | | |
| SATURDAY OF SOULS (1)(*) (Saturday of Souls) | 22 | February | | |
| SATURDAY OF SOULS (2)(*) (Saturday of Souls) | 7 | June | | |
| SATYROS (Satyros) | 6 | July | | |
| SAVATIOS (Savatios) | 19 | September | | |
| SAVINA (Sabina, Sabena, Savina, Savena, Zabia, Zabina) | 11 | March | | |
| SAVVAS (Savvas, Savas) | 5 | December |  |  |
| SEBASTIANOS (1) (Sevastianos, Sebastian) | 26 | February | | |
| SEBASTIANOS (2) (Sevastianos, Sebastian) | 18 | December |  |  |
| SEILINOS (Seilinos) | 0 | not known | | |
| SEIRIOS (Seirios) | 0 | not known | | |
| SELEFKOS (Selefkos) | 16 | February | | |
| SELENE (Selene, Seline) | 5 | June | | |
| SEMELI (Semeli) | 0 | not known | | |
| SERAPHIM (1) (Serafeim, Serafim, Serafina) | 6 | May | | |
| SERAPHIM (2) (Serafeim, Serafim) | 16 | August | | |
| SERAPHIM (3) (Serafeim, Serafim) | 4 | December | | |
| SERAPHIM (4) (Serafeim, Serafim) | 2 | January |  |  |
| SERGIOS (Sergios, Sergio) | 7 | October | | |
| SEVASTIANI (1) (Sebastiani, Sebastian, Sevasti, Sevi) | 7 | June | | |
| SEVASTIANI (2) (Sebastiani, Sebastian, Sevasti, Sevi) | 24 | October |  |  |
| SEVIRIANOS (Sevirianos, Severiano) | 9 | March | | |
| SFODRIAS (Sfodrias) | 0 | not known | | |
| SIDI (Sidi) | 0 | not known | | |
| SIKELI (Sikeli) | 0 | not known | | |
| SILOUANOS (Silouanos) | 30 | July | | |
| SILVANOS (Silvanos, Silvana) | 5 | November | | |
| SILVESTROS (Sylvestros, Sylvester) | 2 | January | | |
| SIMEON (1) (Simeon) | 3 | February | | |
|
|
| SIMEON (2) (Simeon) | 1 | September | | |
| SIMMIAS (Simmias) | 0 | not known | | |
| SIMON (Simonas, Simon) | 10 | May |  |  |
| SIMONIDIS (Simonidis) | 0 | not known | | |
| SINESIOS (Sinesios) | 26 | May | | |
| SINODINOS (Synodinos) | 0 | not known | | |
| SISYFOS (Sisyfos) | 0 | not known | | |
| SIVYLA (Sivyla) | 0 | not known | | |
| SKAMON (Skamon) | 0 | not known | | |
| SKEVOFILAKAS (Skevofilakas) | 0 | not known | | |
| SKIADENI (Skiadeni) | 8 | September | | |
| SKIPION (Skipion) | 0 | not known | | |
| SKIRONIDIS (Skironidis) | 0 | not known | | |
| SKOPAS (Skopas) | 0 | not known | | |
| SKOPELIANOS (Skopelianos) | 0 | not known | | |
| SMARAGDA (Smaragdenia, Smaro, Smaragda, Smara, Smaroula, Smaragdoula) | 9 | March | | |
| SMARAGDOS (Smaragdos, Smaragdis, Smaragdenios, Smaris) | 9 | March | | |
| SMIHIAS (Smihias) | 0 | not known | | |
| SOCRATES (1) (Sokrates, Sokratis, Socrates) | 10 | April | | |
| SOCRATES (2) (Sokrates, Sokratis, Socrates) | 21 | October |  |  |
| SOFILOS (Sofilos) | 0 | not known | | |
| SOFILOS (Sofilos) | 0 | not known | | |
| SOFOCLES (Sofoclis) | 10 | April |  |  |
| SOFRONIOS (Sofron) | 11 | March | | |
| SOLOMON (Solomon, Solomontas) | 2 | December | | |
| SOLOMONI (Solomoni) | 1 | August |  |  |
| SOLON (Solon, Solonas, Solohon) | 17 | May | |  |
| SONIA (Sonia, Sonja) | 17 | September | | |
| SOPHIA (Sofia, Sonia, Fifi, Sofianos, Sofoula, Sofoulis, Sofouli, Fouli) | 17 | September | | |
| SOSIPATROS (1) (Sosipatros, Sopatros, Patra) | 29 | April | | |
| SOSIPATROS (2) (Sosipatros, Sopatros, Patra) | 10 | November | | |
| SOSSANA (*) (Sosana) | 14 | December |  |  |
| SOTIRIS (Sotiria, Sotiris) | 6 | August |  |  |
| SOULTANA (Soultana, Souzi) | 21 | November | | |
| SOZON (Sozonas) | 7 | September | | |
| SPARTI (Sparti) | 0 | not known | | |
| SPEFSIPPOS (Spefsippos) | 0 | not known | | |
| SPEIO (Speio) | 0 | not known | | |
| SPILIOS (Spilios) | 0 | not known | | |
| SPINTHAROS (Spintharos) | 0 | not known | | |
|
|
| SPIRIDON (Spiros, Spyridon, Spyros, Spyridoula) | 12 | December |  |  |
| STAFYLOS (Stafylos) | 0 | not known | | |
| STAMATIA (1) (Stamatia, Matoula, Mato, Stamela, Stamatina, Stamata, Matina, Mata) | 3 | February | | |
| STAMATIA (2) (Stamatia, Matoula, Mato, Stamela, Stamatina, Stamata, Matina, Mata) | 16 | August | | |
| STAMATIA (3) (Stamatia, Matoula, Mato, Stamela, Stamatina, Stamata, Matina, Mata) | 8 | November | | |
| STAMATIS (1) (Stamatis, Stamos) | 3 | February |  |  |
| STAMATIS (2) (Stamatis, Stamos) | 16 | August | | |
| STAMATIS (3) (Stamatis, Stamos) | 8 | November | | |
| STAMOULIS (Stamoulis) | 0 | not known | | |
| STASINOS (*) (Stasinos, Stasini, Stasia, Stasa, Stasina) | 20 | April | | |
| STAVROS (Stavros, Stavroula, Steven) | 14 | September | | |
| STEPHANOS (Stefanos, Stephania, Steven, Stefania, Stephen, Stevan, Stevenson, Stevon, Stevyn, Steve, Stefan, Stephan, Steffen, Stefon) | 27 | December | | |
| STERGIOS (Stergios) | 26 | November |  |  |
| STHENELAOS (Sthenelaos) | 0 | not known | | |
| STHENIDAS (Sthenidas) | 0 | not known | | |
| STILIANOS (Stelios, Stylianos, Stella, Stelia) | 26 | November |  |  |
| STILPON (Stilpon) | 0 | not known | | |
| STISAGORAS (Stisagoras) | 0 | not known | | |
| STISIHOROS (Stisihoros) | 0 | not known | | |
| STRATIGOS (Stratigos, Stratigoula) | 8 | November | | |
| STRATOKLIS (Stratoklis) | 0 | not known | | |
| STRATON (Straton, Stratos) | 17 | August | | |
| STRATONIKI (Stratoniki) | 31 | October | | |
| STRATONIKOS (Stratonikos, Stratos, Stratis) | 30 | September | | |
| STRATTIS (Strattis) | 0 | not known | | |
| STRAVON (Stravon) | 0 | not known | | |
| SUNDAY OF ORTHODOXY (*) (Sunday of Orthodoxy) | 9 | March | | |
| SUNDAY OF THE ANCESTORS OF JESUS CHRIST (*) (Sunday of the Ancestors of Jesus Christ) | 14 | December |  |  |
| SUNDAY OF THE PRODIGAL SON (*) (Sunday of the Prodigal Son) | 16 | February |  |  |
| SYGLITIKI (Syncletica, Siglitiki) | 5 | January |  |  |
| SYLAS (Sylas) | 26 | March | | |
| SYLVESTER (Sylvester, Sylvestor) | 2 | January | | |
| SYLVIA (Silvia) | 15 | December | | |
| SYMELA (Simela, Symela, Soymela, Soumela) | 15 | August |  |  |
| SYNODI (Synodi) | 0 | not known | | |
| SYRMOULA (Syrmoula, Syrmo) | 0 | not known | | |
| SYROS (Syros) | 0 | not known | | |