Heather Menzies Urich (December 3, 1949 – December 24, 2017) was a Canadian–American model and actress, known for her roles as Louisa von Trapp in the 1965 film The Sound of Music. Beautiful, sunny, and engaging blonde actress Heather Menzies was born on December 3, 1949 in Toronto, Canada.

Her family moved to the United States when Heather was eleven. She graduated from Hollywood High School and subsequently attended the Falcon Studio's University of the Arts in Hollywood. Heather made a strong and promising film debut as Louisa von Trapp in the delightful classic musical The Sound of Music (1965).