The name Geri is a Germanic name with roots dating back to the medieval period. It is derived from the Old German word "gēr," which means "spear." The name was commonly used in various Germanic cultures, including the Saxons, Franks, and Goths.

One of the earliest recorded uses of the name Geri can be found in the Old Norse Poetic Edda, a collection of ancient Norse poems and stories. In the poem "Grímnismál," the name Geri is mentioned as one of the names of Odin, the chief god in Norse mythology. This association with a powerful deity suggests that the name held significance and respect in ancient Germanic societies.

During the Middle Ages, the name Geri gained popularity among the nobility and warrior classes. It was often given to sons who were expected to grow into brave and skilled fighters. In the epic poem "Nibelungenlied," written in the 13th century, there is a character named Gernot, which is a variant of Geri. This literary reference further solidifies the name's historical presence in Germanic culture.

One of the earliest recorded individuals with the name Geri was Geri the Old, a Norwegian chieftain who lived in the 9th century. He was known for his leadership and bravery during the Viking Age, and his name is mentioned in the Icelandic sagas.

Another notable figure was Geri of Aurillac, a French nobleman and saint who lived in the 9th century. He was renowned for his piety and charitable works, establishing several monasteries and hospitals in the region of Auvergne.

In the 11th century, Geri the Powerful was a prominent German nobleman and military leader who fought alongside Emperor Henry IV during the Investiture Controversy. His exploits and loyalty to the emperor were recorded in contemporary chronicles.

During the 12th century, Geri of Regensburg was a prominent German scholar and theologian. He wrote several influential works on theology and philosophy, contributing to the intellectual discourse of the time.

In the 15th century, Geri Müller was a German artist and woodcarver known for his intricate religious sculptures and altarpieces. His work can be found in numerous churches and museums across Germany, showcasing his skill and artistry.