Kath is a name of Irish origin, derived from the ancient Celtic name Caitlín, which means "pure" or "clear". It has been traditionally used as a diminutive of longer forms like Catherine and Kathleen. The name Kath has gained popularity in its own right over time, often preferred for its simplicity and uniqueness. It is pronounced /kæθ/ in the UK and /kæθɪ/ in the US.
"Kath was quite popular from 1956 to 1960, with a total of 38 babies named Kath."