| Name | Sex | Language | Meaning(s) | Original Spelling | Notes |
|---|
| Signi | Female | Scandinavian 81 names | Meaning(s) of Signi: New Victory 3 names | | Variant of the name Signy. |
| Signy | Female | Scandinavian 81 names | Meaning(s) of Signy: New Victory 3 names | | |
| Sigrid | Female | Scandinavian 81 names | Meaning(s) of Sigrid: Beautiful Victory 2 names | | |
| Sigurd | Male | Scandinavian 81 names | Meaning(s) of Sigurd: Guardian of Victory 1 names | | |
| Sihab | Unisex | Arabic 10801 names | Meaning(s) of Sihab: Deep Water Well 1 names | سِهَاب | |
| Sihah | Male | Arabic 10801 names | Meaning(s) of Sihah: Faultless 2 names Healthy 18 names | صِحَاح | |
| Sihan | Male | Arabic 10801 names | Historic name with unknown meaning. | سيحان | Variant of the name Sayhan. |
| Sihlal | Male | Arabic 10801 names | Meaning(s) of Sihlal: Gentle 149 names Lenient 59 names | سِهْلَال | |
| Sikandar | Male | Arabic 10801 names | Meaning(s) of Sikandar: Defender of Humanity 37 names | سِيكَنْدر | Variant of Iskandar. |
| Silaam | Unisex | Arabic 10801 names | Meaning(s) of Silaam: Peace-making 2 names | سِلَام | |
| Silas | Male | Biblical 45 names | Meaning(s) of Silas: Wood 5 names | | From Latin. |
| Silvano | Male | Italian 145 names | Meaning(s) of Silvano: Wood 5 names | | |
| Silver | Unisex | English 773 names | Meaning(s) of Silver: Fair-haired 2 names Silver 16 names | | |
| Silvester | Male | English 773 names German 170 names | Meaning(s) of Silvester: Of the Woods 3 names | | |
| Sima | Female | Arabic 10801 names | Meaning(s) of Sima: Appearance 3 names Complexion 5 names Countenance 5 names | سيما | |
| Simaa | Female | Arabic 10801 names | Meaning(s) of Simaa: Appearance 3 names Complexion 5 names Countenance 5 names | سيما | Variant of the name Sima, which is mentioned in the Quran. |
| Simaara | Female | Arabic 10801 names | Meaning(s) of Simaara: Nighttime Conversation 12 names | سِمَارَة | Variant of the name Semaara. |
| Simab | Unisex | Persian 2045 names | Meaning(s) of Simab: Mercuy 2 names | سيماب | Refers to the liquid metallic element. |
| Simar | Male | Arabic 10801 names | Meaning(s) of Simar: Night Conversation 2 names | سِيمَار | |
| Simara | Female | Arabic 10801 names | Meaning(s) of Simara: Nighttime Conversation 12 names | سِمَارَة | Variant of the name Semaara. |
| Simarah | Female | Arabic 10801 names | Meaning(s) of Simarah: Nighttime Conversation 12 names | سِمَارَة | Variant of the name Semaara. |
| Simeon | Male | Biblical 45 names | Meaning(s) of Simeon: Hearkening 5 names | | Also known as Simon. |
| Simmaa | Female | Arabic 10801 names | Meaning(s) of Simmaa: Brave 136 names Lion 105 names | صِمَّا | |
| Simmah | Female | Arabic 10801 names | Meaning(s) of Simmah: Mark 12 names Sign 16 names Token 1 names Trait 2 names | سِمّة | |
| Simon | Male | English 773 names | Meaning(s) of Simon: Hearkening 5 names | | Usual English form of Simeon. |
| Simone | Female | French 120 names | Meaning(s) of Simone: Hearkening 5 names | | Feminine of Simon. |
| Sina | Male | Arabic 10801 names | Meaning(s) of Sina: Mountain Sinae 1 names | سينا | |
| Sinan | Male | Arabic 10801 names | Meaning(s) of Sinan: Leopard 8 names Spearhead 2 names | سِنَان | |
| Sineen | Unisex | Arabic 10801 names | Meaning(s) of Sineen: Mountain Sinai 3 names | سِيْنِيْن | The name Sineen is mentioned in the Quran. |
| Sinin | Unisex | Arabic 10801 names | Meaning(s) of Sinin: Mountain Sinai 3 names | سِيْنِيْن | Variant of the name Sineen, which is mentioned in the Quran. |
| Sinnah | Female | Arabic 10801 names | Meaning(s) of Sinnah: Coulter 1 names Double-headed Axe 1 names | سِنّة | |
| Sinwan | Male | Arabic 10801 names | Meaning(s) of Sinwan: Multiple Trees Growing From the Same Root 1 names | صِنْوَان | The name Sinwan is mentioned in the Quran. |
| Siraa | Female | Arabic 10801 names | Meaning(s) of Siraa: Tradition 5 names Way of Life 9 names | سِيَرا | |
| Siraaj | Unisex | Arabic 10801 names | Meaning(s) of Siraaj: Cresset 4 names Lamp 13 names Light 106 names | سِرَاج | Variant of the name Siraj, which is mentioned in the Quran. |
| Siraanush | Female | Persian 2045 names | Meaning(s) of Siraanush: Eternally Content 2 names Eternally Pleased 2 names | سيرانوش | Variant of the name Siranoush. |
| Siraat | Unisex | Arabic 10801 names | Meaning(s) of Siraat: Path 24 names | صِرَاط | Variant of the name Sirat, which is mentioned in the Quran. |
| Siraaya | Female | Arabic 10801 names | Meaning(s) of Siraaya: Night Journey 5 names | سِرَاية | Variant of the name Siraayah. |
| Siraayah | Female | Arabic 10801 names | Meaning(s) of Siraayah: Night Journey 5 names | سِرَاية | |
| Sirah | Female | Arabic 10801 names | Meaning(s) of Sirah: Tradition 5 names Way of Life 9 names | سِيرَة | |
| Siraj | Unisex | Arabic 10801 names | Meaning(s) of Siraj: Cresset 4 names Lamp 13 names Light 106 names | سِرَاج | |
| Siraj al-Haq | Male | Arabic 10801 names | Meaning(s) of Siraj al-Haq: Lamp of Truth 2 names | سِرَاج الحَق | |
| Sirajaddin | Male | Arabic 10801 names | Meaning(s) of Sirajaddin: Supporter of Islam 60 names | سِرَاج الدِين | Literally "lamp of the faith". |
| Sirajuddin | Male | Arabic 10801 names | Meaning(s) of Sirajuddin: Supporter of Islam 60 names | سِرَاج الدِين | Variant of the name Sirajaddin. |
| Sirajulhaq | Male | Arabic 10801 names | Meaning(s) of Sirajulhaq: Lamp of Truth 2 names | سِرَاج الحَق | Variant of the name Siraj al-Haq. |
| Siranoush | Female | Persian 2045 names | Meaning(s) of Siranoush: Eternally Content 2 names Eternally Pleased 2 names | سيرانوش | |
| Sirat | Unisex | Arabic 10801 names | Meaning(s) of Sirat: Path 24 names | صِرَاط | The name Sirat is mentioned in the Quran. |
| Sirhan | Male | Arabic 10801 names | Meaning(s) of Sirhan: Lion 105 names Wolf 8 names | سِرْحَان | |
| Siri | Female | Scandinavian 81 names | Meaning(s) of Siri: Beautiful Victory 2 names | | Pet form of Sigrid. |
| Sirrir | Male | Arabic 10801 names | Meaning(s) of Sirrir: Bringer of Joy 2 names | سِرِّير | Variant of the name Serir. |
| Sirvan | Male | Kurdish 197 names Persian 2045 names | Historic name with unknown meaning. | سيروان | Name of a river in Eastern Iraq and Western Iran. |
