Fictional characters
- Diane, an unseen and unheard character in the 1990 television show Twin Peaks
- Diane, an unseen character from the 2008 video game No More Heroes
- Diane (The Seven Deadly Sins), a main character in the 2012 manga series The Seven Deadly Sins
- Diane Butcher, a character from the BBC soap opera EastEnders
- Diane Court, a character in the 1989 film Say Anything...
- Diane Chambers, a character in the TV series Cheers
- Diane Darcy, a race car driver in Herbie Goes to Monte Carlo
- Diane Hutchinson, a character from the British soap opera Hollyoaks
- Diane Jenkins Newman, a character on the American soap opera The Young and the Restless
- Diane Lockhart, a character of CBS television series The Good Wife
- Diane Miller, a character on the American soap opera General Hospital
- Diane Sugden, a character on the British soap opera Emmerdale
- Diane Nguyen, a character on the American adult animated series Bojack Horseman
- Diane Simmons, a character in the TV series Family Guy
- Diane Johnson, a main character in Black-ish
This page or section lists people that share the same given name.
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