Hindi Nahahati ang Langit (English: An Indivisible Heaven) is a 1985 Filipino romantic drama film directed by Mike de Leon from a screenplay written by Mia A. Concio, based on the Tagalog Klasiks serial of the same name by Nerissa G. Cabral.

The film stars Christopher de Leon and Lorna Tolentino playing the respective roles of stepsiblings Noel and Melody.

Dina Bonnevie and Edu Manzano play the roles of Noel and Melody's respective spouses, Cynthia and Ronald.

One day, Noel and Melody became business partners but their confession of love for each other led to the destruction of their respective marriages and the stigma of their relationship.

It became a blockbuster in its theatrical run, and director Mike de Leon's commercially successful film to date.