Chareen is of American origin, derived from the Irish surname O'Cathren which means 'descendant of Cathrion', an old Celtic personal name consisting of the elements cath meaning 'battle' and righ meaning 'king'. The name was brought to America by early settlers and over time became popular as a given name. It is pronounced as /SHAY-rin/ in English.
"The name Chareen has seen varied popularity over the years, with peaks in usage in 1967 and 1984."