- Gender: Male
- Birthday: 1965-11-25 ( 58 years old )
- Place of Birth: Albany, California, U.S.
- Also Known As: Rancid
Timothy Ross Armstrong is an American musician, singer, songwriter, producer, and actor. Known for his distinctive hoarse and soulful voice, he is the singer/guitarist for the punk rock band Rancid and hip hop/punk rock supergroup Transplants.