| Year | Film | Role | Notes |
| 1978 | Rabbit Test | Little girl | Feature film |
| 1991 | Beverly Hills, 90210 | Mackenzie | Episode: "Fame Is Where You Find It" |
| 1993 | MTV Spring Break '93 Blind Date | Host | with Jon Stewart |
| 1994 | Tears and Laughter: The Joan and Melissa Rivers Story | Herself | Television film |
| 1998 | Men in White | Female Reporter | Television film |
| 1999 | Silk Stalkings | Tegan Cook | Episode: "A Clockwork Florida Orange" |
| 1999 | The Big Tease | Dianne Abbott | Television film |
| 2000 | Best Actress | Herself | Television film |
| 2001 | Just Shoot Me! | Herself | Episode: "Sugar Momma" |
| 2004 | Out for Blood | Talk Show Host | Direct-to-video |
| 2004 | Dave the Barbarian | Princess Irmaplotz (voice) | Recurring role; 3 episodes |
| 2003–2017 | Fashion Police | Herself | Executive producer; 112 episodesHost; 31 episodes |
| 2005 | The L Word | Herself | Cameo Appearance; 1 episode "Lagrimos de Oro" |
| 2005 | I Love the '80s 3-D | Herself | Episode: "1989" |
| 2007–2008 | Jury Duty | Herself | Guest star; 5 episodes |
| 2009 | The Bold and the Beautiful | Herself | Guest star; 4 episodes |
| 2009–2015 | The Apprentice | Herself | Host; 12 episodes |
| 2010 | Cubed | Human Resource Rep | Guest star |
| 2011–2013 | Joan & Melissa: Joan Knows Best? | Herself | Co-executive producer; 26 episodesMain cast; 34 episodes |
| 2013–2014 | In Bed with Joan | Herself | Executive producer; 71 episodesGuest star; 4 episodes |
| 2015 | Joy | Joan Rivers | Feature film |
| 2003–2017 | Fashion Police | Herself | Executive producer; 112 episodesHost; 31 episodes |
| 2016–2023 | Hell's Kitchen | Herself | Chef's table guest diner for the blue team in Season 16Guest diner in Season 22 |