| Kuinsan | Son of Queen Empire; Prince |
| Kulasekar | Lord of the family, a title for a Hindu deity |
| Kumarswamy | Name of Subramnya Swamy |
| Kurmarao | Action; Activity; Hard Worker |
| Kurumurthi | Name of God Vishnu |
| Kusanthi | Beautiful, a name derived from the Sanskrit word for beauty |
| Kushvanth | Lord of the forest, a title for a Hindu deity |
| Kusmik | A person who is like a bud |
| Kittibun | One with glorious merit/luck |
| Kittichai | A person of glorious victory |
| Kob Chai | To be grateful or thankful. |
| Kob Khun | To express deep gratitude. |
| Kob Sinn | full of treasure |
| Kraisingha | A brave and mighty lion. |
| Kriang Sak | A man of great strength. |
| Kukrit | great power; authority |
| Kwanchai | essential heart |
| Kaaden | Gift of God, or a blessing from Allah |
| Kadden | Strong and powerful, possibly derived from the Gaelic word for 'little battle' |
| Kadenn | Variant of Kaden, meaning 'little battle' or 'strong' |
| Kamlan | Derived from the Sanskrit word for 'lotus' or 'beautiful flower' |
| Kattam | Possibly derived from the Arabic word for 'cat' or 'agile' |
| Kerbal | Derived from the Arabic word for 'mountain' or 'high place' |
| Khadeej | Derived from the Arabic word for 'traveler' or 'pilgrim' |
| Kharif | Derived from the Arabic word for 'autumn' or 'harvest season' |
| Khasab | Derived from the Arabic word for 'harbor' or 'coastal town' |
| Khassal | Derived from the Arabic word for 'exclusive' or 'private' |
| Khatar | Derived from the Arabic word for 'danger' or 'risk' |
| Khateer | Derived from the Arabic word for 'fear' or 'terror' |
| Khathib | Derived from the Arabic word for 'speaker' or 'orator' |
| Khaththab | Derived from the Arabic word for 'speech' or 'oration' |
| Khawatir | Derived from the Arabic word for 'worry' or 'anxiety' |
| Khoshnud | Derived from the Persian word for 'joy' or 'happiness' |
| Khosrau | Derived from the Persian word for 'glory' or 'fame' |
| Khufair | Derived from the Arabic word for 'fear' or 'awe' |
| Khulum | Derived from the Arabic word for 'secret' or 'hidden' |
| Khuml | Derived from the Arabic word for 'secret' or 'hidden' |
| Kifayatullah | Derived from the Arabic phrase meaning 'sufficient for God' |
| Kinani | Derived from Arabic, means 'beautiful' or 'lovely' |
| Koury | Derived from Arabic, means 'courageous' or 'brave' |