Tomi Petteri Putaansuu (* 15 Februarie 1974 in Rovaniemi, Finland), beter bekend onder sy verhoognaam Mr. Lordi, is 'n Finse musikant en die huidige sanger van Lordi. Lordi: Napalm Market (1993) Lordi: Bend Over and Pray the Lord (1997) Lordi: Get Heavy (2002) Lordi: The Monsterican Dream (2004) Lordi: The Arockalypse (2006) Lordi: Deadache (2008) Lordi: Babez for Breakfast (2010) Lordi: To Beast or not to Beast (2013) Rovaniemi Rokkaa (1991) Rockmurskaa (1995) Grandevils: Grandevils (2005) Agnes Pihlava: When the Night Falls (2006) Martti Servo & Napander: Täältä pesee! (2007) Judge Bone's Original Monstervision Freakshow: Welcome to Hellsinki (2007) Domination Black: Haunting (2008) Naked Idol: Filthy Fairies (2013)