| English Name | Name | Meaning | Length | Add |
| Siamak | ஸிஅமாக | Silver flame | 4.0 |  |
| Sian | ஸியந | Very intelligent loves horses and her life has lots of friends enjoys riding horses and being with her best Pal tahny | 3.0 | |
| Sibanarayan | ஸீபநாராயண | | 6.0 | |
| Sidak | ஸிதக | Wish | 3.0 | |
| Sidanth | ஸீதஂட | | 3.0 | |
| Sidarth | ஸீதார்த | | 3.5 | |
| Siddak | ஸித்தக | Lord Shiva | 3.5 | |
|
|
| Siddanagouda | Siddanagouda | Love | 12.0 | |
| Siddanth | ஸித்தாந்த | Principled | 4.0 | |
| Siddartha | ஸீத்தார்தா | Lord Buddha | 4.0 | |
| Siddeeq | Siddeeq | Just, True, Sincere | 7.0 | |
| Siddesh | ஸீத்தேஷ | Lord of the blessed | 3.5 | |
| Siddeshwar | ஸீத்தேஷ்வர | | 5.0 | |
| Siddeswara | ஸீத்தேஸ்வாரா | Lord Shiva | 5.0 | |
| Siddh | ஸித்த | Name of Lord Shiva | 2.5 | |
| Siddha | ஸித்தா | Lord Shiva | 2.5 | |
| Siddhadev | ஸித்தாதேவ | Lord Shiva | 4.5 | |
| Siddhali | ஸீத்தாலீ | Siddhi Prapti | 3.5 | |
| Siddhan | ஸித்தாஂ | Lord Murugan | 2.5 | |
| Siddhanath | ஸித்தநாத | Mahadev (Lord Shiva) | 4.5 | |
| Siddhansh | ஸித்தஂஷ | | 3.5 | |
| Siddhant | ஸித்தாஂத | Rule | 3.5 | |
| Siddhanta | ஸித்தாஂதா | Principle | 3.5 | |
| Siddhanth | ஸீத்தாந்த | Principle | 4.0 | |
| Siddhanth Nair | ஸீத்தஂட நைர | Principal | 6.5 | |
| Siddhantha | ஸீத்தாந்தா | Lord Krishna | 4.0 | |
|
|
| Siddharatha | ஸீத்தாரதா | For righteous task or mission or purpose | 4.5 | |
| Siddharth | ஸித்தார்த | White mustard | 4.0 | |
| Siddhartha | ஸித்தார்தா | A Name of Lord Buddha | 4.0 | |
| Siddharthan | ஸித்தார்தந | Lord Murugan | 5.0 | |
| Siddhesh | ஸித்தேஷ | Lord of the blessed | 3.5 | |
| Siddheshwar | ஸித்தேஷ்வர | A Goddess | 5.0 | |
| Siddhi Priya | ஸித்தி ப்ரிய | Bestowed of wishes and boons | 5.0 | |
| Siddhid | ஸித்தித | Lord Vishnu, Lord Shiva | 3.5 | |
| Siddhidhata | ஸீத்தீததா | Bestowed of success & accomplishments | 4.5 | |
| Siddhik | ஸித்திக | Lord Ganesh | 3.5 | |
| Siddhivinayaka | ஸீத்தீவீநாயகா | Bestowed of success | 6.5 | |
| Siddhnath | ஸித்தநாத | We are also asking meaning from you | 4.5 | |
| Siddhraj | ஸித்தராஜ | Lord of perfection | 4.5 | |
| Siddhu | ஸித்து | Lord Shiva | 2.5 | |
| Siddiq | | Truthful, Upright | 0 | |
| Siddique | Siddique | | 8.0 | |
| Siddrath | ஸித்த்ரத | | 4.0 | |
| Siddu | ஸீட்டுஂ | Lord Shiva | 2.5 | |
| Sidharta | ஸிதார்தா | Accomplished goal | 3.5 | |
| Sidharth | ஸிதார்த | Achieved all wishes | 3.5 | |
| Sidhartha | ஸித்தார்தா | A Name of Lord Buddha | 4.0 | |
| Sidhdesh | ஸீத்தேஷ | Lord Shiva Name | 3.5 | |
| Sidhu | ஸீதுஂ | | 2.0 | |
| Sifet | | Quality | 0 | |
| Sihag | ஸீஹாக | Sword | 3.0 | |
| Sijil | ஸீஜீல | Glazing | 3.0 | |
| Sikandar | ஸிகஂதர | Victorious | 4.0 | |
| Sikander | ஸீகாந்தேர | Sikander is also the Persian and Hindustani version of the Name alexander, After alexander the great | 4.5 | |
| Silah | | Arms | 0 | |
| Silamban | ஸீலஂபந | Lord Murugan | 4.0 | |
| Simaab | ஸீமாப | | 3.0 | |
| Simak | | Arcturus star | 0 | |
| Simanchal | ஸீமாஂந்சல | | 4.5 | |
| Simant | ஸீமஂத | Light | 3.0 | |
| Simanta | ஸீமாஂநதா | | 4.0 | |
| Simar | ஸீமர | God's favorite | 3.0 | |
| Simha | ஸிஂஹா | Joy | 2.0 | |
| Simit | ஸீமித | Confined | 3.0 | |
| Simra | ஸீமர | Heaven | 3.0 | |
| Simranjit | ஸீம்ரந்ஜீத | Simran- means "prayer", While the suffix "-jit" means "to achieve." therefore, The real definition of "simranjit" is translated upon interpretation | 5.0 | |
| Sina | | Sinai | 0 | |
| Sinan | ஸீநந | Spear head | 3.0 | |
| Sindhunath | ஸிந்துநாத | Lord of the ocean | 4.5 | |
| Singaravelan | ஸிஂகாரவேலந | Lord Murugan | 6.0 | |
| Singhajit | ஸீந்கஜீத | Defeater of lion | 4.5 | |
| Sinha | ஸிந்ஹா | Hero | 2.5 | |
| Sinhag | ஸிந்ஹாக | Lord Shiva | 3.5 | |
| Sinhvahan | ஸிந்ஹவாஹந | Lord Shiva | 5.5 | |
| Sinjan | ஸீந்ஜந | Sound of Nupur | 3.5 | |
| Sinjeet | ஸீந்ஜித | | 3.5 | |
| Sinthuran | ஸீந்துரண | | 4.5 | |
| Siraaj | ஸிராஜ | Lamp, Light | 3.0 | |
| Siraj | ஸிராஜ | Lamp, Light | 3.0 | |
| Siraj al Din | | Light of the faith | 0 | |
| Siravan | ஸீராவண | Tamil Name means eligible, Good Man | 4.0 | |
| Siriyal | ஸீரீயல | Most popular Telugu God | 4.0 | |
| Sirthik | ஸீர்தீக | | 3.5 | |
| Sitakanta | ஸிதாகாஂதா | Lord Rama | 4.0 | |
| Sitanshu | ஸிதாஂஷூ | The Moon | 3.0 | |
| Sitaram | ஸீதாராம | Sita & Lord Rama | 4.0 | |
| Sitaramapada | ஸீதாரமாஂபடா | Always engrossed in Rama's service, Lord Hanuman | 6.0 | |
| Sitikantha | ஸிதிகாந்தா | Lord Shiva | 4.5 | |
| Siva | ஷிவா | Lord Shiva | 2.0 | |
| Siva Krishna | ஷிவா கரஷ்ண | Lord Shiva & Lord Krishna | 4.5 | |
| Siva Kumaran | ஸிவா குமாரந | Son of Lord Shiva | 6.0 | |
| Siva Preethi | ஷிவா பரீதீ | Lord Shiva | 5.0 | |
| Sivabalan | ஸீவாபலந | | 5.0 | |
| Sivabhushan | ஸீவாபுஷண | Lord Shiva | 5.0 | |
| Sivaguru | ஸீவாகுருஂ | | 4.0 | |
| Sivakumar | ஷிவகுமார | Lord Shiva | 5.0 | |
| Sivanand | ஸிவாநஂத | One who is Happy in Lord Shiva's thoughts or Shiva's worship | 4.0 | |
| Sivananda | ஸீவாநஂதா | Lord Shiva | 4.0 | |