The name Ramiro has its origins in the Visigothic language, which was spoken by the Visigoths, an ancient Germanic people who ruled in parts of modern-day Spain and Portugal from the 5th to the 8th centuries. The name is believed to be derived from the Germanic elements "ragin" (meaning "counsel" or "advice") and "meri" (meaning "famous" or "celebrated").

In the early medieval period, the name Ramiro was particularly popular among the Visigothic nobility and royalty. It is recorded in various historical documents and chronicles from that era, such as the "Codex Aemilianensis" and the "Chronicon Muñónense".

One of the earliest and most notable historical figures to bear the name Ramiro was Ramiro I (790-850), a king of Asturias in the 9th century. He played a crucial role in the Christian resistance against the Moorish conquest of the Iberian Peninsula and is known for his victories over the Moors at the Battle of Clavijo in 844.

Another prominent figure was Ramiro II (c. 900-951), who ruled as the King of León and Galicia from 931 to 951. He is remembered for his military campaigns against the Moors and for his efforts to consolidate the Kingdom of León.

In the late medieval period, the name Ramiro continued to be used in the Iberian Peninsula. One notable bearer was Ramiro III (c. 961-985), who ruled as the King of León from 966 to 985.

Beyond the Iberian Peninsula, the name Ramiro also found its way into other parts of Europe. In Italy, for example, there was Ramiro I (c. 830-890), who served as the Duke of Benevento from 851 to 890.

Another notable figure was Ramiro de Maeztu (1875-1936), a Spanish philosopher, writer, and politician who played a significant role in the intellectual and cultural life of Spain in the early 20th century.

While the name Ramiro has its roots in the Visigothic language and was particularly popular in the medieval Iberian Peninsula, it has been used across various cultures and time periods, with several notable historical figures bearing this name.