The surname OHARRA is believed to have originated from the Basque region of northern Spain and southwestern France. It is thought to derive from the Basque words "or" meaning "meadow" and "harra" meaning "rocky ground" or "craggy area." This suggests that the name may have initially referred to someone who lived in or near a rocky meadow or pasture.
The earliest known records of the OHARRA surname date back to the late 15th century in the Spanish province of Biscay. One of the first documented instances is found in a 1492 municipal register from the town of Bilbao, which lists a farmer named Juan de Oharra.
In the 16th century, the surname appears in various legal documents and church records from the Basque region. For example, a court case from 1534 in the village of Bermeo mentions a landowner called Pedro de Oharra. Additionally, the baptismal records of the Church of San Vicente in Abando, near Bilbao, include an entry from 1572 for a child named Maria Oharra.
One notable figure with this surname was Martín de Oharra, a Basque sailor who served as a navigator on several Spanish expeditions to the Americas in the late 16th century. He is believed to have been born around 1550 in the town of Lekeitio, and he accompanied explorers such as Álvaro de Mendaña on voyages to the Solomon Islands and other parts of the Pacific.
In the 17th century, the OHARRA name can be found in various regions of Spain, likely due to migration from the Basque Country. For instance, there are records of an Antonia Oharra who was born in Madrid in 1623, and a Francisco Oharra who was a soldier in the Spanish Army stationed in Valencia in the 1670s.
Another notable figure was Ignacio de Oharra, a Basque merchant and shipowner who lived in the late 17th and early 18th centuries. He was born in the town of Mutriku around 1670 and became a wealthy trader, owning several vessels that sailed between Spain and the Americas.
As the OHARRA surname spread beyond its Basque origins, variations in spelling emerged, such as Oharra, O'Harra, and O'Hara. These alternative forms can be found in records from Ireland, where the name may have been adopted by some families of Irish descent.