Answer
Yes. Article 26 of the Civil Code protects the dignity, personality, privacy, and peace of mind of every person against intrusion by other private individuals — not only against the government. It makes a person liable in damages for acts such as prying into the privacy of another, meddling with or disturbing another's private life or family relations, intriguing to alienate a person from his friends, and vexing or humiliating another on account of religious beliefs, station in life, place of birth, physical defect, or other personal condition.
This civil-law right to privacy is distinct from two other things it is often confused with: the constitutional right to privacy, which protects against intrusion by the State, and the Data Privacy Act of 2012 (Republic Act No. 10173), a separate statutory regime governing the processing of personal data. Article 26 gives a direct civil action for damages between private persons.