The given name Ratana has its origins in the Sanskrit language, an ancient Indo-Aryan language that dates back to the 2nd millennium BCE. The name is derived from the Sanskrit word 'ratna,' which means 'jewel' or 'gem.' It is believed to have been a popular name in ancient India, particularly among Hindus and Buddhists.

The name Ratana is mentioned in various Hindu and Buddhist scriptures, including the Vedas and the Tripitaka. In the Mahayana Buddhist tradition, Ratana is often associated with the Three Jewels or the Three Refuges: the Buddha, the Dharma (teachings), and the Sangha (community of followers).

One of the earliest recorded examples of the name Ratana can be found in the Ratana Sutta, a discourse attributed to the Buddha himself. The Ratana Sutta is a part of the Sutta Pitaka, one of the principal collections of Buddhist scriptures.

Throughout history, several notable individuals have borne the name Ratana. One of the most famous was Ratana Thera, a Buddhist monk who lived in the 5th century BCE and was known for his wisdom and spiritual attainments. He is believed to have been one of the first disciples of the Buddha.

Another prominent figure was Ratana Navaratna, a Sinhalese Buddhist monk and scholar who lived in the 16th century. He was renowned for his contributions to the study and preservation of Buddhist literature in Sri Lanka.

In the realm of politics, Ratana Siri Ubhayasara was a Burmese princess and queen consort of King Naungdawgyi, who ruled the Hanthawaddy Kingdom (present-day Myanmar) in the 16th century.

The name Ratana has also been associated with the arts. Ratana Thingkhun was a celebrated Thai classical dancer and choreographer who lived from 1882 to 1944. She played a significant role in preserving and promoting traditional Thai dance forms.

In more recent times, Ratana Promdilok was a Thai actress and singer who achieved fame in the 1970s and 1980s. She was known for her roles in numerous Thai films and television series.