Terence Hill was born Mario Girotti on March 29, 1939, so as of today (October 31, 2025) he is 86 years old.

• Birth details: born in Venice, Italy. His birth name is Mario Girotti, later adopting the professional name Terence Hill.

• Current age: March 29, 1939 to October 31, 2025 equals 86 years.

• Public confirmation of age: multiple sources note his birth date as March 29, 1939 and his Italian heritage, with a long career in film alongside Bud Spencer.

If you’d like, I can provide a brief timeline of his career or verify this against a specific source.