Centennial's marching band has won the Portland Grand Floral Parade more than 20 times, including 12 times consecutively. The band's 2000 fall field show, "Gloria", held the record for the highest scoring show in the
Northwest Marching Band Circuit. Centennial's
Future Business Leaders of America chapter has won the 6A Chapter of the Year title for five years in a row. In 2016, a Centennial High School senior Grace Ramstad was crowned the 2016
Rose Festival Queen. As of 2025, the centennial High School has multiple active clubs; Band, Choir, Drama, FBLA, HTAC, Key club, MECHA, Racquetball, Speech and Debate, Student Council, Yearbook, Book club, Screen Printing club, Homework and Tutoring, and Spanish language Arts. == Sports ==