Yaya is a popular name that has its origins in various cultures such as African, Greek, and Arabic. It is often used as a term of endearment for a grandmother or older female relative in many African countries. In Greek, Yaya means "grandmother" or "nanny" and is a common name for young girls as well. In Arabic, Yaya can mean "to be alive" or "to live" and is often used as a name for both boys and girls. Overall, Yaya is a versatile and culturally diverse name that carries a sense of love, respect, and vitality.