Kevan Is A Boy’s Name Of Irish Origin. It’s A Variant Of Kevin, Which Is The Anglicized Version Of The Name Caoimhín, Meaning “of Noble Birth.” You May Not Be Royalty, But That Doesn’t Mean You Can’t Treat Your Little One Like A Prince Or Princess! Fans Of George R. R. Martin’s A Song Of Ice And Fire Series Will Recognize Kevan As The Name Of Lord Tywin Lannister’s Younger Brother.