| Year | Title | Role | Notes |
| 2004 | Quintuplets | Haley | Episode: "Little Man on Campus" |
| The Young and the Restless | Donna | Episode: "Episode " & "#1.7938" |
| 2005 | Joey | Tanya | Episode: "Joey and the Break-Up" |
| 2008 | Fab Five: The Texas Cheerleader Scandal | Emma Carr | Television film |
| 2009 | Melrose Place | Kendra Wilson | Episode: "Windsor" & "Gower" |
| 2011 | The Playboy Club | Bunny Janie | Main cast |
| 2012 | She Made Them Do It | Sarah Jo Pender | Television film |
| 2012–2013 | American Horror Story | Teresa Morrison | Recurring cast: Season 2 (5 episodes) |
| 2013–2014 | Witches of East End | Freya Beauchamp | Main cast |
| 2014 | The Mindy Project | Brooke | Episode: "Be Cool" |
| So You Think You Can Dance | Herself | Guest judge; episode: "Episode " & "#11.15" |
| 2015 | The Real Girl's Kitchen | Episode: "The H Word" |
| 2015–2016 | Supergirl | Lucy Lane | Recurring role: Season 1 (13 episodes) |
| 2016 | Lip Sync Battle | Herself | Competitor; episode: "Channing Tatum vs. Jenna Dewan-Tatum" |
| No Tomorrow | Tuesday | Episode: "No Holds Barred" |
| 2017 | Hollywood Medium with Tyler Henry | Herself | Episode: "Jenna Dewan-Tatum/Emily VanCamp/Pauly D" |
| 2017–2018 | World of Dance | Main host: Season 1–2 |
| Man with a Plan | Jen | Guest cast: Season 1–2 |
| 2018 | Blaze and the Monster Machines | Little Bunny | Voice; episode: "Breaking the Ice" |
| 2018–2019 | The Resident | Julian Booth | Recurring cast: Season 2 |
| 2018–2022 | Step Up | — | Executive producer |
| 2019 | Soundtrack | Joanna | Main cast |
| 2019–2020 | Flirty Dancing | Herself | Main host; also producer |
| 2020 | Robot Chicken | College Girl / Superglue Woman | Voice; episode: "Buster Olive in: The Monkey Got Closer Overnight" |
| 2021–present | The Rookie | Bailey Nune | Recurring cast: Season 3; main cast: Season 4–present |
| 2022 | Let's Get Physical | Sadie Smith | Television film; also executive producer |
| Come Dance with Me | Herself | Main judge |
| 2022–2023 | Superman & Lois | Lucy Lane | Recurring role: Season 2; guest role: Season 3 (6 episodes) |
| 2023 | Devil on My Doorstep | Natasha | Television film; also executive producer |
| That's My Jam | Herself | Episode: "Jenna Dewan & JoJo Siwa vs. Nikki Glaser & Jay Pharoah" |
| Celebrity Family Feud | Contestant; episode: "Episode " |
