Hiram na Puso or A Change of Heart is a Filipino drama series created and written by Suzette Doctolero, under the directions of Andoy Ranay and Roderick Lindayag, and produced by GMA Network. The series features Kris Bernal and Gina Alajar as the main protagonists, with Mark Herras, Bela Padilla, Polo Ravales, Gardo Versoza and Ayen Munyi-Laurel. The series premiered March 5, 2012 replacing Kokak on GMA Afternoon Prime and March 7, 2012 worldwide via GMA Pinoy TV.

The story centers on the lives of Zeny and her daughter Lira. In the story, Zeny is a loving and protective mother who takes all risks to save her daughter from death only to be abandoned by the same daughter after she literally had a change of heart. Soon, Zeny realizes that this is the dire consequence of one irreversible mistake she committed in the past.

This series catches positive feedback, both from the audience and critics, because of its no protagonist-no antagonist concept and edgy and intriguing storyline. Viewers also praises the casts' good acting, particularly Gina Alajar, Kris Bernal and Ayen Laurel.

The series concluded on July 6, 2012. It ran 18 weeks with 88 episodes overall. It replaced by Hindi Ka Na Mag-iisa in the same timeslot.