Raku
Raku may refer to:

Lake Raku, an artificial lake in Tallinn, Estonia
Raku ware, a type of pottery used in the Japanese tea ceremony
Raku, Nepal,  a village in the Karnali Zone
RAkU (ballet), a ballet by Yuri Possokhov
Raku (programming language), a computer language formerly known as Perl 6
Raku (wrestler) (born 1997), Japanese professional wrestler

See also
Horse hair raku, a method of decorating pottery
Raku-Go, a form of Japanese verbal entertainment