Krishnamurti Villanueva (born May 23, 1971) is a Filipino actor. He was a former matinee idol in the late 1980s. He was a cast member of That's Entertainment, a youth-oriented talent and variety show now defunct in the Philippines.

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Villanueva started as commercial model of Coca-Cola until discovered by Deo Fajardo. He became a member of That's Entertainment. He received a nomination from FAMAS Awards (Filipino Academy of Movie Arts and Sciences), Luna Awards (Film Academy of the Philippines), Star Awards for Movies (Philippine Movie Press Club) and Gawad Urian Award for Best Supporting Actor in Miguel/Michelle (1998). He starred as Filmmaker 2 in Bayaning 3rd World (1999), in which Villanueva was nominated for Gawad Urian Best Actor.

He played as the father of Jillian Ward in Mars Ravelo's TV series Trudis Liit showed in GMA Network. In 2011, Cris Villanueva made a comeback in ABS-CBN as Rocco Amarillo in Mula sa Puso - Rocco Amarillo is the biological father of Gabriel (JM De Guzman) who saved the life of Magda (Dawn Zulueta) under the direction of Wenn V. Deramas. He was included in the powerhouse cast of Kahit Puso'y Masugatan, TV series aired in ABS-CBN starring Iza Calzado, Gabby Concepcion, Andi Eigenmann and Jake Cuenca.