The given name Christia has its origins in Greek and Latin languages, dating back to the early days of Christianity. It is a feminine form of the Latin name Christianus, which means "follower of Christ."

The name Christia first appeared in ancient Christian texts and records, particularly in the writings of early Church Fathers and martyrologies. It was bestowed upon women who embraced the Christian faith and dedicated their lives to its teachings.

One of the earliest recorded instances of the name Christia can be found in the Acta Sanctorum, a collection of hagiographies compiled by the Bollandist monks in the 17th century. According to these records, there was a Christian martyr named Christia who lived in the 3rd century AD and was executed during the Persecution of Decius.

Throughout history, several notable women have borne the name Christia. One of the most renowned was Christia of Iberia (c. 337 - c. 413), a Cappadocian princess who played a crucial role in the Christianization of Iberia (modern-day Georgia). Her unwavering faith and missionary efforts led to the conversion of King Mirian III and the establishment of Christianity as the state religion.

Another prominent figure was Christia of Leavenworth (1822 - 1868), an American Catholic nun and educator who co-founded the Sisters of Charity of Leavenworth, a religious order dedicated to education and social services.

In medieval Europe, the name Christia was not uncommon among religious women. One such individual was Christia de Markyate (c. 1096 - c. 1155), an English nun and recluse who lived as an anchoress in the village of Markyate, Hertfordshire.

During the Renaissance period, the name Christia was also used by several notable women, including Christia Murada (1518 - 1590), a Spanish poet and playwright who wrote works celebrating the Virgin Mary and the Catholic faith.

While the name Christia has its roots in Christianity, it has also been adopted by individuals of various faiths and cultures over the centuries, reflecting its enduring appeal and the diversity of its bearers.