Family History
The Cosby surname is of Anglo-Norman origin, derived from the village of Cosby in Leicestershire, England, whose name combines the Old Norse personal name Kosi with the Danish suffix *-by*, meaning "farm" or "settlement." The family established itself in Ireland during the Tudor period, most notably in County Laois (formerly Queen's County), where Sir Francis Cosby became a prominent military commander and landowner in the late 16th century. Over the centuries, the Cosby family became closely associated with Irish landed society, public service, and military leadership. Today, the surname reflects a heritage of Norman tradition, resilience, and enduring ties to both England and Ireland.
Origins of the Coat of Arms
The Cosby coat of arms is a quartered shield representing the union of several distinguished family lineages. It combines symbols including black panther heads for courage and vigilance, golden hunting horns for honorable service and readiness, and a blue hunting horn for leadership and faithful duty. Additional heraldic charges commemorate inherited family alliances and noble ancestry. The quartered design itself signifies the merging of prominent houses through marriage and inheritance, preserving the achievements of multiple generations. Together, these elements create a heraldic emblem that reflects the Cosby family's legacy of military service, noble lineage, loyal leadership, and enduring honor.
Irish Heraldry & Family Heritage
The Cosby Coat of Arms
The coat of arms shown here is the heraldic design selected for the
Cosby surname in our Irish heritage collection. We use this
artwork to represent historical associations connected with the surname
and to personalize the heritage products offered on this page.
In Irish heraldic practice, coats of arms are granted or confirmed to
specific individuals and corporate bodies. Sharing a surname does not,
by itself, establish a formal right to bear a particular coat of arms.
Heraldic designs may vary between family branches and historical sources.
This artwork is presented as surname-heritage imagery and does not
establish an individual right to bear arms.
