| Year | Title | Role | Notes |
| 1993 | Loving | Student | Episode ; debut role |
| 1994 | All My Children | Fashion Stylist | Episode |
| Hardcore TV | Penny | Episode: "Rock'em Sock'em Lesbians" |
| 1995–1996 | Caroline in the City | Shelly | 5 episodes |
| 1996 | 3rd Rock from the Sun | Laurie Harris | Episode: "Dick's First Birthday" |
| Good Company | Liz Gibson | Main role |
| Townies | Denise Garibaldi Callahan |
| 1997 | Law & Order | Lisa Lundquist | 3 episodes |
| Seinfeld | Valerie | Episode: "The Millennium" |
| NewsRadio | Andrea | 4 episodes |
| 1998 | Conrad Bloom | Molly Davenport | Main role |
| 2000 | M.Y.O.B. | Opal Marie Brown | 4 episodes |
| 2000–2007 | Gilmore Girls | Lorelai Gilmore | Main role; also producer |
| 2001 | Chasing Destiny | Jessy James | TV movie |
| 2002 | Family Guy | Mother Maggie | Voice role; episode: "Road to Europe" |
| 2006 | Studio 60 on the Sunset Strip | Herself / Host | Uncredited; episodes: "The Long Lead Story" & "The Wrap Party" |
| 2009 | The Bridget Show | Bridget O'Shea | Unsold TV pilot |
| 2010–2015 | Parenthood | Sarah Braverman | Main role |
| 2011 | The Late Late Show with Craig Ferguson | Geoff Peterson | Voice role; episode: "#8.62" |
| 2012 | Go On | Amy | Episode: "Dinner Takes All" |
| Project Runway | Herself / Guest judge | Episode: "A Times Square Anniversary Party" |
| 2014 | Web Therapy | Grace Tiverton | Episodes: "Smile Through the Pain" & "In Angus We Trust" |
| Hollywood Game Night | Herself / Celebrity player | Episode: "The Pittsburgh Steal-ers!" |
| 2015 | The Late Late Show | Herself / Host | February 19 episode |
| The Odd Couple | Gaby Madison | Episode: "The Audit Couple" |
| Repeat After Me | Herself | Episode |
| 2016 | Gilmore Girls: A Year in the Life | Lorelai Gilmore | TV movie |
| 2017 | Curb Your Enthusiasm | Bridget | 3 episodes |
| Linda from HR | Linda Plugh | TV movie |
| 2017–2021 | Vampirina | Oxana Hauntley | Voice role |
| 2018 | The Peter Austin Noto Show | Santa's Helper | Episode: "Santas Helpers" |
| 2020–2021 | Zoey's Extraordinary Playlist | Joan | Recurring role (season 1), guest (season 2) |
| 2021–2022 | The Mighty Ducks: Game Changers | Alex Morrow | Main role; also director |
| 2025 | The Z-Suite | Monica Frazier | Main role; also producer |
