Matti Helge Ranin (21 November 1926 – 24 November 2013) was a Finnish actor.

Ranin had an extensive career both in film and on television. He was in his prime as film-actor in the 1950s and 60s, most famously playing Captain Kariluoto in Edvin Laine's Tuntematon sotilas. He also had a recurring role of Toivo Virta in the Komisario Palmu films and appeared as Lauri Salpakari in the 1968 film adaption of Täällä Pohjantähden alla.

Selected filmography

• Loviisa – Niskavuoren nuori emäntä (1946)
• Ruma Elsa (1949)
• Kanavan laidalla (1949)
• Hilman päivät (1954)
• Tuntematon sotilas (1955)
• Komisario Palmun erehdys (1960)
• Täällä Pohjantähden alla (1968)
• Akseli ja Elina (1970)
• Tie naisen sydämeen (1996)

• Joulukalenteri (1980, 1985)
• Mustapartainen mies (1990)
• Blondi tuli taloon (1994–95)
• Kotikatu (2004–09)
• Taivaan tulet (2011)