Meaning Derived from the Celtic word 'ceadach' which means 'first'. It is a rhymning variant of the name Katy. Origin of Kadi Celtic , Irish Popular Middle Names Pronunciation 🔊 Listen Kadi KEY-diy Similar Names Kadian Kadee Kadia Kadienne Fiona Deirdre Shayla Kylie Yvaine Kacie Year by Year Popularity of Kadi