How Old Is Sylvester Stallone — Sylvester Stallone was born July 6, 1946, making him 79 years old as of mid-June 2026. He turns 80 on July 6, 2026 per People and Biography.com verified records.

Biography.com and People list Sylvester Stallone's birth date as July 6, 1946, in New York City. That Cancer birthday anchors every age calculation fans search for online.

To answer how old is Sylvester Stallone, subtract 1946 from the current year and adjust if today is before July 6. Mid-June 2026 means age 79 because his birthday has not yet arrived this year.

From Rocky at thirty to Rambo at thirty-six and Creed at sixty-nine, Sylvester Stallone's age tracks a career spanning New York roots through Hollywood dominance in his late seventies.

Sylvester Stallone turns 80 on July 6, 2026 — the same date fans mark every year with birthday posts and Rocky marathon watch parties. He is 79 throughout June 2026 before that milestone arrives.