Janet Dibley (born 13 December 1958 in Doncaster, South Yorkshire) is an English actress. She is known for her roles the 1980s sitcom The Two of Us, as Lorna Cartwright in the BBC soap opera EastEnders and Elaine Cassidy in the BBC soap opera Doctors.
Before training at the Rose Bruford College, in April 1976 she appeared in GAS with the National Student Drama Festival which won the Royal Shakespeare Company's inaugural Buzz Goodbody Award and The Festival Judges' Awards. Dibley came to public attention playing Elaine in ITV's The Two of Us, a sit-com about a co-habiting couple, opposite Nicholas Lyndhurst. In 1993, Dibley played the part of Linda in The Gingerbread Girl a series about a single mother trying to raise her daughter. She then played Lorna Cartwright in the BBC soap opera EastEnders. However, it was reported that she decided to quit the show, because she was uncomfortable with the plans for her character, where the script writers proposed Lorna became a prostitute and then end up getting raped. Dibley agreed an exit strategy, and the scripts were rewritten.
Dibley has also done theatre work with the National Theatre and had roles in Mr Cinders, Carousel, Twelfth Night, Figaro, Guys and Dolls and Cinderella. She also starred in the BBC drama The Chase, and also writes. Dibley joined the cast of BBC One daytime soap opera Doctors in August 2010. Married to Tyler Butterworth, the couple have one child.