Novlene Hilaire Williams-Mills (née, Williams; born 26 April 1982) is a retired Jamaican track and field athlete.

At the 2005 World Championships in Athletics, she won (together with Shericka Williams, Ronetta Smith and Lorraine Fenton) a silver medal.

At the 2006 Commonwealth Games in Melbourne, Australia, she received a bronze medal for her third-place finish in the 400 metres.

At the 2015 World Championships in Athletics in Beijing, Williams-Mills finished sixth in the 400 m final involving four Jamaican women.

In the relay, along with Christine Day, Shericka Jackson and Stephenie Ann McPherson, the individual 4th, 3rd and 5th placers, respectively, the Jamaican team won gold in front of the American favorites by just outsprinting them in the last 50 metres.

At the London 2017 World Championships, Williams-Mills made the final of the women's 400 m and came in eighth place in a time of 51.49.