The name Karthik is a popular name and parents adore it due to its significance on the character. Karthik name meaning is A Hindu Month; One who Bestows Happiness; God Shiva's Elder Son and it associate lucky number is 6. Karthik is a versatile name that has been popular in the English-speaking world for many decades and Karthik name meaning is also deep. Find out the pronunciation of Karthik and other well-known baby names that sound similar to Karthik in the United States of America (USA).