Meaning and name origin
Caitriona \ca(i)-trio-na, cait-riona\ as a girl's name is of Greek and Gaelic origin, and the meaning of Caitriona is "pure". Caitriona is a variant of Catherine (Greek): from "katharos". Also a variant of Catriona (Gaelic, Greek): anglicized form of the Gaelic names Catrìona (Scottish) and Caitríona (Irish), which are forms of Katherine.
Caitriona has 19 variant forms: Caitrionagh, Catreena, Catreina, Catrenia, Catrina▼, Catrinia, Catrionagh, Catroina, Catryna, Kaitrinna, Kaitriona, Kaitrionaugh, Katrena, Katriana, Katrina▼, Katriona, Katrionagh, Katrionaugh, Katryna.
Caitriona is not a popular first name for females and an equally uncommon surname or last name for all people (2000 U.S. Census).
Displayed below is a comparison of the popularity of the girl name Caitriona and its variant forms. Popular variation forms ranked in the Top 1000/100 are Katherine (#83), Catherine (#170), Katrina, Catriona and Catrina. (2014 statistics).