dtm (short for Don't Tell Mama) is the largest gay club in Scandinavia and one of the most popular clubs in Helsinki. It's the combination of a bar, a cafe and a nightclub, with four bars and two dancefloors.

dtm also hosts foam parties, gigs, the Danceteria dance party, the lesbian club L-WORLD and the gay fetish party Finlandization. The music is contemporary and older dance hits except on special nights.

The majority of the crowd is fashion conscious and on some nights the place is more straight and "metrosexual" than gay.