Noah is the fifth child of Billy Ray and Tish Cyrus and the youngest sibling of Trace and Miley Cyrus. She was named one of Time's 30 Most Influential Teens in 2017 Noah is the fifth child of Billy Ray and Tish Cyrus and the youngest sibling of Trace and Miley Cyrus. She was named one of Time's 30 Most Influential Teens in 2017