Kacey Ainsworth is an English actress, best known for playing the long-suffering Little Mo in EastEnders.

Kacey Ainsworth, is the only soap actress who has won three Soap Actress awards in one single year in 2002. She won these awards at the British Soap Awards, Inside Soap Awards, TV Quick and Choice Awards and at the National Television Awards, all held in 2002. She made her final appearance in EastEnders in May 2006.