Where Does the O'Kane Surname Come From?
O'Kane is how some branches of the Kane family came to write their name.
The O' in front of the name is a particle that was often added to Kane on registers.
Heraldry is personal: arms associated with the Kane surname were borne by specific families, and sharing the name does not mean sharing the blazon. Research your O'Kane family history with a full surname report and painted coat of arms.