Jarkko Tapani Suo, professionally known as Lauri Tähkä, is a Finnish musician and recording artist. He was a leading member in the former band Lauri Tähkä & Elonkerjuu.
Growing up he listened to Kiss, Iron Maiden, the Finnish band Eppu Normaali, the works of Ismo Alanko as well as Kauko Röyhkä. Tähkä found his musical identity in a cross between rock and national ballads. With his cousin Simo Ralli he created "Niin kauan minä tramppaan", which won the "Lapuan Spelit" competition.
The Elonkerjuu band's home base was Teuva, Finland. Currently Lauri Tähkä is making a solo career. His first album, Polte, was released in October, 2011.