The name Teo has its origins in the Greek language, where it was derived from the word "Theos," meaning "God." It is believed to have been used as a name since the ancient Greek era, dating back to around the 5th century BC.

In Greek mythology, Teo was one of the names given to the god Apollo, who was the god of music, poetry, and prophecy. The name was also associated with the Greek word "Theodoros," which means "gift of God."

One of the earliest recorded instances of the name Teo can be found in the works of ancient Greek writers and philosophers, such as Plato and Aristotle. It was a common name among the Greek aristocracy and was often given to male children as a symbol of devotion to the gods.

Throughout history, several notable individuals have borne the name Teo. One of the earliest examples is Teo of Smyrna, a Greek mathematician who lived in the 2nd century BC and made significant contributions to the field of geometry.

In the 6th century AD, Teo of Alexandria was a Christian monk and philosopher who wrote extensively on theological topics and was a prominent figure in the intellectual circles of the Byzantine Empire.

During the Italian Renaissance, Teo Mussi (1388-1469) was a renowned artist and architect from Siena, Italy. He was known for his intricate sculptural works and architectural designs, including the Palazzo Pubblico in Siena.

In the 18th century, Teo Mammen (1730-1800) was a prominent Norwegian poet and playwright who wrote in the Danish language. His works were influential in shaping the literary landscape of Scandinavia during that period.

More recently, Teo Chee Hean (born 1954) is a Singaporean politician who has served as a member of parliament and held various cabinet positions, including that of Deputy Prime Minister.

These are just a few examples of the many notable individuals throughout history who have borne the name Teo, highlighting its enduring presence across various cultures and time periods.