Petri Lindroos (born 10 January 1980) is a melodic death/folk metal guitarist and vocalist.

In 1996 he founded the melodic death metal band Norther with drummer Toni Hallio.

In 2004, he joined the folk metal/Viking metal band Ensiferum as lead vocalist and continued to perform and record with Norther until 3 March 2009, when Norther's official website announced his departure from the band to focus more on his duties with Ensiferum.

[1] In 2008, Lindroos fell sick and was subsequently unable to perform on the planned Russian tour.

For the duration of the tour, bass player Sami Hinkka took over Lindroos' vocals while ex-bassist Jukka-Pekka Miettinen filled in as a sessional guitarist.