Dan Ahti Tolppanen (born 11 June 1981) is a Finnish singer, rapper and record producer, better known by his stage name Uniikki (meaning unique). He is the co-founder in of Rähinä Records (founded in 1998) with Elastinen, Iso H, Andu and Tasis.
Uniikki was born to a Jewish mother, who is of Polish-Jewish descent, and a Finnish father. Finnish politician Ben Zyskowicz is his maternal uncle. He grew up in Malminkartano, Helsinki. Uniikki gained fame through membership in Finnish band Kapasiteettiyksikkö. For some recordings, he appeared in Rähinä (effectively a duo effort of Elastinen & Uniikki). He works as a solo act, and signed to his own Rähinä Records, but also has a great number of collaborations.