Ada Nicodemou (Greek: Άντα Νικοδήμου) (born May 14, 1977 in Larnaca, Cyprus) and is now an Australian resident since 1987 she is an Australian actress, best known for her role as Leah Patterson-Baker in the soap opera Home and Away.

She made her TV debut in 1991, in an episode of Police Rescue. Nicodemou first auditioned for Home and Away at the age of 16, losing the role to Laura Vasquez, the audition led to some work as an extra on the show.

In 1994, at the age of 17, Nicodemou was cast as the rebellious Katarina on Heartbreak High. Although the role was initially to be a 12-week stint, she remained on the show for three years. While filming the show, she completed her high school studies by correspondence.

After leaving Heartbreak High, Nicodemou studied Tourism at TAFE. She returned to television in 1998, playing Fiona Motson on the short-lived Breakers. In 1999, she played DuJour (the White Rabbit Girl) in The Matrix.

Nicodemou made seve