| Movie | 2021 | Snoop & Martha's Very Tasty Halloween | Self - Host | |
| Movie | 2020 | Built Beautiful: An Architecture and Neuroscience Love Story | Narrator | |
| Movie | 2002 | Big Trouble | Herself | |
| Movie | 2022 | We Feed People | Self (archive footage) (uncredited) | |
| Movie | 2023 | iHeartRadio Jingle Ball 2023 | Self - Presenter | |
| Movie | 2008 | The Great Buck Howard | Martha Stewart | |
| Movie | 2022 | The Great American Tag Sale with Martha Stewart | Self - Host | |
| Movie | 2015 | Comedy Central Roast of Justin Bieber | Self | |
| Movie | 2018 | Comedy Central Roast of Bruce Willis | Self | |
| Movie | 2015 | Pixels | Martha Stewart | |
| Movie | 2016 | Jeremiah Tower: The Last Magnificent | Herself | |
| Movie | 2016 | Bad Moms | Herself | |
| Movie | 2024 | Martha | Self | |
| Movie | 2017 | Night of Too Many Stars: America Unites for Autism Programs | Self | |
| Movie | 2002 | Men in Black II | Martha Stewart | |
| Movie | 2005 | Martha Stewart Cooking: Favorite Family Dinners | Herself | |
| Movie | 2005 | Martha Stewart Holidays: Classic Thanksgiving | Herself | |
| Movie | 2006 | Martha Stewart Holidays: Martha's Halloween Ideas | Herself | |
| Movie | 2006 | Martha Stewart: Martha's Favorite Cookies | Herself | |
| Movie | 2006 | Martha's Guests: Master Chefs | Herself | |
| Movie | 2006 | Martha's Summer Favorites | Herself | |
| Movie | 2019 | Very Ralph | Self | |
| Movie | 2021 | The Cooking Show | Herself | |
| Movie | 2003 | Late Night with Conan O'Brien: 10th Anniversary Special | Self | |
| Movie | 2000 | Julia Child's Kitchen Wisdom | | |
| Movie | 2025 | Loki Pete | Self (archive footage) | |
| TV Show | 1989 | The Simpsons | Martha Stewart (voice) | 1 |
| TV Show | 2003 | The Ellen DeGeneres Show | Self | 2 |
| TV Show | 1996 | The Daily Show | Self | 1 |
| TV Show | 1952 | Today | Self | 3 |
| TV Show | 1997 | The View | Self | 5 |
| TV Show | 1992 | The Tonight Show with Jay Leno | Self | 3 |
| TV Show | 1999 | Law & Order: Special Victims Unit | Eleanor Hastings | 1 |
| TV Show | 2005 | The Apprentice: Martha Stewart | Host | 13 |
| TV Show | 2012 | Finding Your Roots | Self | 1 |
| TV Show | 2005 | Martha | | 1 |
| TV Show | 2006 | Ugly Betty | Martha Stewart | 1 |
| TV Show | 2005 | The Colbert Report | | 1 |
| TV Show | 2009 | The Jay Leno Show | Self | 1 |
| TV Show | 1993 | Late Night with Conan O'Brien | Self - Guest | 6 |
| TV Show | 2006 | Conversations with Michael Eisner | | 1 |
| TV Show | 2021 | Clipped | Self - Judge | 6 |
| TV Show | 2010 | The Marriage Ref | Self - Panelist | 1 |
| TV Show | 2021 | Martha Gets Down and Dirty | Self - Host | 7 |
| TV Show | 2004 | The Soup | Self | 1 |
| TV Show | 2008 | Whatever, Martha! | | 23 |
| TV Show | 2011 | Martha Bakes | Herself - Host | 39 |
| TV Show | 2019 | The Kelly Clarkson Show | Self | 4 |
| TV Show | 1999 | The Early Show | Self - Correspondent | 1000 |
| TV Show | 1996 | 3rd Rock from the Sun | Herself | 1 |
| TV Show | 2011 | 2 Broke Girls | Herself | 2 |
| TV Show | 2014 | Late Night with Seth Meyers | Self | 7 |
| TV Show | 2014 | The Tonight Show Starring Jimmy Fallon | Self - Guest | 1 |
| TV Show | 2016 | Martha & Snoop's Potluck Dinner Party | Host | 40 |
| TV Show | 2012 | Martha Stewart's Cooking School | Herself - Host | 62 |
| TV Show | 2014 | The Tonight Show Starring Jimmy Fallon | Self | 4 |
| TV Show | 2016 | The $100,000 Pyramid | Self | 1 |
| TV Show | 2009 | Chopped | Self | 5 |
| TV Show | 2020 | How To with John Wilson | Self | 1 |
| TV Show | 1996 | Baking with Julia | Self | 2 |
| TV Show | 2009 | Watch What Happens Live with Andy Cohen | Self - Guest | 7 |
| TV Show | 2010 | America: The Story of Us | Self | 3 |
| TV Show | 2017 | OBJECTified | Self | 1 |
| TV Show | 2022 | The Kardashians | Self | 1 |
| TV Show | 2013 | MasterChef Junior | Self - Judge | 1 |
| TV Show | 2016 | Match Game | Self - Panelist | 1 |
| TV Show | 1981 | Entertainment Tonight | Self | 1 |
| TV Show | 2022 | Martha Cooks | Host | 50 |
| TV Show | 2022 | Martha Holidays | Host | 3 |
| TV Show | 2015 | Jay Leno's Garage | Self | 1 |
| TV Show | 2003 | Comedy Central Roasts | Self | 2 |
| TV Show | 2020 | Bakeaway Camp with Martha Stewart | Self - Host | 4 |
| TV Show | 2024 | Hope in the Water | Self | 3 |
| TV Show | 2015 | The Late Show with Stephen Colbert | Self | 4 |
| TV Show | 2024 | The Many Lives of Martha Stewart | Self (archive footage) | 4 |
| TV Show | 2020 | Some Good News | Self | 1 |
| TV Show | 2009 | Late Night with Jimmy Fallon | Self | 1 |
| TV Show | 2020 | Martha Knows Best | Self - Host | 14 |
| TV Show | 1994 | Ellen | Martha Stewart | 1 |
| TV Show | 2010 | Conan | Self | 1 |
| TV Show | 1979 | CBS News Sunday Morning | Self | 1 |
| TV Show | 2019 | Today with Hoda & Jenna | Self | 1 |
| TV Show | 2007 | Say Yes to the Dress | Self | 1 |
| TV Show | 2025 | Yes, Chef! | Self - Host | 10 |
| TV Show | N/A | From Martha's Garden | Self | 1 |
