Jaakko Tapani Kalliomäki (born 28 December 1970 in Tampere) is a Finnish actor and director.
Kalliomäki graduated with a master's degree in theatre from the Theater Academy in 1997. Kalliomäki has acted in e.g. Helsinki City Theater, KOM Theater, Tampere Workers' Theater, Theater Jurka and Theater Little Finland. Today he is an actor at the Lahti City Theater. Tapani Kalliomäki starred in Sibelius (2003), as Aino's brother Armas Järnefelt, and as Major Suurkari in Åke Lindman's Tali-Ihantala (2007). On television, he starred in the Hovimäki series as Magnus Lindhof (1999) and Felix Lindhof (2003).