Janne Grönroos, born August 21, 1984, in Hanko, Finland, is a Finnish-Swedish presenter and stand-up comedian.

Grönroos was born in Hanko but grew up in Ekenäs in southern Finland and studied pedagogy at Åbo Akademi University in Vaasa. During that time, he worked as a singer in the cover band Das Dunderhonung and worked as a host for the program "Listan" on Radio X3M. During his studies, Grönroos began to socialize with the artist Krista Siegfrids. The couple were married between the years 2017 and 2019.

During his studies, Grönroos participated in Radio X3M's reality series Galleriet, after which he worked for the channel as a presenter for various programs. Between 2011 and 2016, he did Radio X3M's morning show "Succémorgon". Grönroos worked for Aftonbladet TV from 2017 to 2020, in 2021 he will start as host of the TV program Efter Nio.