Rebecca June Cartwright (born July 23, 1983), also known as Bec Cartwright, is an Australian actress. She plays Hayley Smith on the television series Home and Away. She is also a singer, having chart hits in Australia such as "All Seats Taken" (which appeared in the Top 10 of the Aria Charts), "On The Borderline" and "A Matter Of Time" (both of which appeared in the Top 30). Having taken up dancing since she was three years old, she won the television competition Dancing With The Stars in 2004.

Bec is currently engaged to Australian professional tennis player Lleyton Hewitt.