Kachāshī (カチャーシー), sometimes romanized as katcharsee, is a form of festive Okinawan folk dance.
In Okinawa, it is often a feature of celebrations such as weddings and victory festivities after tegumi wrestling matches and public elections.
It is traditionally accompanied by the sanshin and drum, and often punctuated with finger whistling called yubi-bue (指笛).
The dance is executed with the hands in the air, palms flat for women and curled (or in fists) for men.
The steps are mostly improvised, generally made in a slight bow-legged stance, alternately lifting and lowering the feet to the rhythm.