In Gaelic, name Catriona means – Pure, clear. A Scottish Gaelic variant of Catherine, which is the French form of the Latin Katharina, from the Greek Aikaterina. Famous bearer: the heroine of 19th century author Robert Louis Stevensons novel Catriona.. Other origins for name Catriona include – Gaelic, Irish, Scottish, Irish, French. Name Catriona is most often used as a girl name or female name.