| Year | Title | Role | Notes |
| 2006 | Sexual Intercourse: American Style | Cindy | |
| 2007 | Redeeming Rainbow | Shelly | Television film |
| 2007–2008 | Mister Glasses | Kitty | 5 episodes |
| 2009–2010 | Important Things with Demetri Martin | Allison / Felicia | 2 episodes |
| 2009–2013 | The Office | Erin Hannon | Recurring: Season 5Main role: Seasons 6–9(107 episodes) |
| 2010 | The Office: The 3rd Floor | Erin Hannon | 3 episodes |
| 2012 | NTSF:SD:SUV:: | Fitzpatrick | Episode: "Whack-a-Mole" |
| Robot Chicken | Bella Swan / Tracy / Female Passenger | Voice, episode: "Crushed by a Steamroller on My 53rd Birthday" |
| 2012–2013 | The Mindy Project | Heather | 3 episodes |
| 2013 | Brenda Forever | Brenda Miller | Unaired TV pilot |
| 2013–2014 | Hollywood Game Night | Herself | 2 episodes |
| 2013–2018 | Sofia the First | Crackle | Voice; 10 episodes |
| 2014 | The Ellen DeGeneres Show | Herself (fill-in host) | Episode: "11.96" |
| American Dad! | Jenna | Voice, episode: "Introducing the Naughty Stewardesses" |
| Comedy Bang! Bang! | Herself | Episode: "Ellie Kemper Wears a Purple Ruffled Sleeveless Top & Lavender Flats" |
| TripTank | Homeless Lady, Hula Girl | Voice, 2 episodes |
| 2015 | The Today Show | Herself (co-anchor, Today's Take) | Morning news program (June 29, 2015 – July 17, 2015) |
| WordGirl | Rose Franklin | Voice, episode: "News Girl" |
| Drunk History | Nellie Bly | Episode: "Journalism" |
| 2015–2018 | We Bare Bears | Produce Lucy | Voice, 4 episodes |
| 2015–2020 | Unbreakable Kimmy Schmidt | Kimmy Schmidt | Main role (52 episodes) |
| 2016 | Animals. | Princess | Voice, episode: "Dogs." |
| All Hail King Julien | Karen | Voice, episode: "Revenge of the Prom" |
| 2017 | Julie's Greenroom | Herself | 2 episodes |
| 2018 | The Who Was? Show | Herself (narrator for Amelia) | Episode: "Isaac Newton & Amelia Earhart" |
| 2019 | At Home with Amy Sedaris | Herself | Episode: "Anniversary" |
| Live in Front of a Studio Audience | Gloria Stivic | Episode: "Norman Lear's All in the Family and The Jeffersons" |
| America's Got Talent | Herself (Guest Judge) | Season 14 |
| You're Not a Monster | Elsa Brenner | Voice, 3 episodes |
| 2020 | The Simpsons | Mary | Voice, episode: "A Springfield Summer Christmas for Christmas" |
| 2022 | Central Park | Ingrid Witherstrop | Voice, episode: "Where There's Smoke" |
| Inside Amy Schumer | Noelle Christensen | Episode: "Gratitude" |
| 2022–2023 | Eureka! | Chee | Voice, 4 episodes |
| The Great American Baking Show | Herself (host) | 7 episodes |
