| Laugh Factory | 1996 | Writer | Writer |
| Easy A | 2010 | Actress | Marianne |
| Canned | 2009 | Actress | Sarabeth |
| Living Proof | 2008 | Actress | Jamie McGrath |
| Family Guy | 2008 | Actress | Anna (voice) |
| Sydney White | 2007 | Actress | Sydney White |
| Hairspray | 2007 | Actress | Penny Pingleton |
| Rugrats Tales from the Crib: Three Jacks & a Beanstalk | 2006 | Actress | Taffy (voice) |
| What I Like About You | 2002–2006 | Actress | Holly Tyler |
| She's the Man | 2006 | Actress | Viola |
| Lovewrecked | 2005 | Actress | Jenny Taylor |
| Rugrats Tales from the Crib: Snow White | 2005 | Actress | Taffy (voice) |
| Robots | 2005 | Actress | Piper (voice) |
| What a Girl Wants | 2003 | Actress | Daphne Reynolds |
| Rugrats | 2002–2003 | Actress | Taffy |
| Charlotte's Web 2: Wilbur's Great Adventure | 2002 | Actress | Nellie (voice) |
| All That | 1996–2002 | Actress | Various |
| Big Fat Liar | 2002 | Actress | Kaylee |
| The Drew Carey Show | 2001 | Actress | Various |
| The Nightmare Room | 2001 | Actress | Danielle Warner |
| Arli$$ | 1999 | Actress | Crystal Dupree |
| Sports Theater with Shaquille O'Neal | 1998 | Actress | Caroline Hanley |
| Blue's Clues | 1998 | Thanks | special thanks |
| This Is 40 | 2012 | Soundtrack | performer: "You Can't Stop the Beat" |
| Hairspray | 2007 | Soundtrack | performer: "Without Love" (2001), "You Can't Stop the Beat" (2001) |
| What I Like About You | 2005 | Soundtrack | performer: "Summer Nights" (uncredited) |
| Amanda Bynes & Paul Sieminski: The Podcast Podcast Series | 2023 | Self | Self - Host |
| Access Hollywood | 2022 | Self | Self |
| Hollywood Insider | 2021–2022 | Self | Self |
| Laugh Factory | 1996–2018 | Self | Self |
| Fashion News Live | 2015 | Self | Self |
| E! True Hollywood Story | 2012 | Self | Self |
| 2011 MTV Movie Awards | 2011 | Self | Self |
| The Making of Easy A | 2010 | Self | Self |
| Hope and Miracles: The Making of 'Living Proof' Video | 2009 | Self | Self |
| 2009 MTV Video Music Awards | 2009 | Self | Self |
| The 14th Annual Critics' Choice Awards | 2009 | Self | Self - Presenter |
| The Victoria's Secret Fashion Show | 2008 | Self | Self |
| Rachael Ray | 2007–2008 | Self | Self - Guest |
| Starz Inside: Fashion in Film | 2008 | Self | Self |
| 14th Annual Screen Actors Guild Awards | 2008 | Self | Self |
| 13th Annual Critics' Choice Awards Red Carpet Premiere | 2008 | Self | Self |
| 13th Annual Critics' Choice Awards | 2008 | Self | Self |
| 'Hairspray' Extentions | 2007 | Self | Self |
| Hairspray: Inside the Recording Booth | 2007 | Self | Self |
| You Can't Stop the Beat: The Long Journey of 'Hairspray' | 2007 | Self | Self |
| 2007 American Music Awards | 2007 | Self | Self |
| Jimmy Kimmel Live! | 2004–2007 | Self | Self - Guest |
| Entertainment Tonight | 2007 | Self | Self |
| The Tonight Show with Jay Leno | 2003–2007 | Self | Self - Guest |
| Total Request Live | 2004–2007 | Self | Self |
| Late Night with Conan O'Brien | 2005–2007 | Self | Self - Guest |
| The View | 2004–2007 | Self | Self - Guest |
| Up Close with Carrie Keagan | 2007 | Self | Self - Guest |
| HBO First Look | 2005–2007 | Self | Self |
| Richard & Judy | 2007 | Self | Self - Guest |
| 2007 MTV Movie Awards | 2007 | Self | Self - Presenter |
| CosmoGIRL! Spy TV Series | 2007 | Self | Self |
| The Young Hollywood Awards TV Special | 2006 | Self | Self |
| Blue's Biggest Stories | 2006 | Self | Self |
| The Tyra Banks Show | 2005–2006 | Self | Self - Guest |
| 2006 MuchMusic Video Awards | 2006 | Self | Self - Presenter |
| 2006 MTV Movie Awards | 2006 | Self | Self - Presenter |
| Last Call with Carson Daly | 2006 | Self | Self - Guest |
| The Ellen DeGeneres Show | 2003–2006 | Self | Self - Guest |
| The Reichen Show | 2006 | Self | Self |
| Isaac | 2005 | Self | Self - Guest |
| Live with Kelly and Mark | 2004–2005 | Self | Self - Guest |
| The Teen Choice Awards 2005 | 2005 | Self | Self - Attendee |
| Nickelodeon Kids' Choice Awards '05 | 2005 | Self | Self |
| Style Star | 2005 | Self | Self |
| Assembling 'Robots': The Magic, the Music, & the Comedy | 2005 | Self | Self |
| The Making of 'Robots' | 2005 | Self | Self |
| Late Show with David Letterman | 2005 | Self | Self - Guest |
| The Late Late Show with Craig Ferguson | 2005 | Self | Self - Guest |
| Channel Surfing TV Movie | 2004 | Self | Self - Host |
| The Tony Danza Show | 2004 | Self | Self - Guest |
| The Jamie Kennedy Experiment | 2003–2004 | Self | Self |
| The Wayne Brady Show | 2004 | Self | Self - Guest |
| Nickelodeon Kids' Choice Awards '04 | 2004 | Self | Self |
| The Late Late Show with Craig Kilborn | 2003 | Self | Self - Guest |
| The Sharon Osbourne Show | 2003 | Self | Self - Guest |
| The Teen Choice Awards 2003 | 2003 | Self | Self |
| All That | 2003 | Self | Self |
| Today | 2003 | Self | Self - Guest |
| 2003 MTV Movie Awards | 2003 | Self | Self - Presenter |
| Nickelodeon Kids' Choice Awards '03 | 2003 | Self | Self |
| The Caroline Rhea Show | 2003 | Self | Self - Guest |
| The Amanda Show | 1999–2002 | Self | Self - Host |
| Storyline Online | 2002 | Self | Self |
| Nickelodeon Kids' Choice Awards '02 | 2002 | Self | Self |
| The Nick Cannon Show | 2002 | Self | Amanda Bynes |
| Mad TV | 2002 | Self | Self |
| Rock & Roll Back to School Special | 2001 | Self | Self |
| Rugrats: Still Babies After All These Years | 2001 | Self | Narrator (voice) |
| Nickelodeon Kids' Choice Awards | 2001 | Self | Self |
| The Rosie O'Donnell Show | 2001 | Self | Self - Guest |
| Rove Live | 2000 | Self | Self |
| Nickelodeon Kids' Choice Awards 2000 | 2000 | Self | Self - Presenter & Winner |
| Double Dare 2000 | 2000 | Self | Self - Contestant |
| Figure It Out | 1997–1999 | Self | Self - Panelist |
| Nickelodeon Kids' Choice Awards '99 | 1999 | Self | Self |
| Blue's Clues | 1998 | Self | Self |
| The 1998 Annual Kid's Choice Awards | 1998 | Self | Self |
| MuchOnDemand | 1997–2010 | Self | Self - Guest |
| WatchMojo | 2024 | Archive Footage | Self (archive footage) |
| MsMojo | 2024 | Archive Footage | Self (archive footage) |
| Quiet on Set: The Dark Side of Kids TV | 2024 | Archive Footage | Self (archive footage) |
| MellVerse: Movie Reactions TV Series | 2023 | Archive Footage | Self (archive footage) |
| Dark Side of the 2000s | 2023 | Archive Footage | Self (archive footage) |
| You Don't Know Amanda Video | 2023 | Archive Footage | (archive footage) |
| First Edition TV Series | 2023 | Archive Footage | Self (archive footage) |
| Entertainment Tonight | 2013–2023 | Archive Footage | Self (archive footage) |
| Access Hollywood | 2022 | Archive Footage | Self (archive footage) |
| Celebrity Page | 2018–2019 | Archive Footage | Self (archive footage) |
| Childhood Thoughts | 2015 | Archive Footage | Moody (archive footage) |
| The Insider | 2014 | Archive Footage | Self (archive footage) |
| Inside Edition | 2014 | Archive Footage | Self (archive footage) |
| Chelsea Lately | 2013 | Archive Footage | Self (archive footage) |
| The Tonight Show with Jay Leno | 2012 | Archive Footage | Self (archive footage) |
| She's the Man: Deleted Scenes Video | 2006 | Archive Footage | Viola (archive footage) |
| 50 Cutest Child Stars: All Grown Up | 2005 | Archive Footage | Self (archive footage) |
| Biography | 2005 | Archive Footage | Self (archive footage) |
| All That 10th Anniversary Reunion Special | 2005 | Archive Footage | Various (archive footage) |