History:

The Norman invasion of England probably had a hand in it, as did later trips from the British Isles to places like America and Australia. These moves, whether people chose them or were forced, put Kane families all over the map. The spelling changed a bit over time because of how people spoke and wrote in different places.

Description:

Its found in many different cultures and regions. Any connection to a particular community would just be a coincidence.

The surname Kane has some interesting variations. Kain is a simpler spelling, probably reflecting how people said it in different places. OKane shows Irish roots, with the "O" being a common way to show possession or add a description. MacKane suggests Scottish origins, as "Mac" means "son of". These different spellings show how the name changed as it spread to different places and cultures.