| Year Title Role Notes | |
| 2009 The Battery's Down Bat Mitzvah Riffer "Episode: ""Bad Bad News""" | |
| 2010–2013 Victorious Cat Valentine Main role (56 episodes) | |
| 2011 iCarly Cat Valentine "Episode: ""iParty with Victorious""" | |
| 2011–2013 Winx Club Princess Diaspro (voice) Recurring role (specials, seasons 3 & 5) | |
| 2013 Swindle Amanda Benson Television film | |
| 2013–2014 Sam & Cat Cat Valentine Co-lead role (35 episodes) | |
| 2014 Family Guy Italian Daughter (voice) "Episode: ""Mom's the Word""" | |
| 2014 Saturday Night Live Herself/musical guest "Episode: ""Chris Pratt/Ariana Grande""" | |
| 2015 RuPaul's Drag Race Herself/guest judge "Episode: ""Ru Hollywood Stories""" | |
| 2015 Knock Knock Live Herself Unaired episode | |
| 2015 Scream Queens Sonya Herfmann / Chanel#2 Recurring role; 4 episodes | |
| 2016 Saturday Night Live Host and musical guest "Episode: ""Ariana Grande""" | |
| 2016 The Voice Performer – Duet with Christina Aguilera Air date: May 26, 2016 (Season 10 finale) | |
| 2016 Hairspray Live! Penny Pingleton Special | |
| 2016 The Voice Performer – Duet with Stevie Wonder Air date: December 13, 2016 (Season 11 finale) | |
| 2017 One Love Manchester Organizer and performer Special | |
| 2017 Carpool Karaoke: The Series Herself "Episode: ""Seth MacFarlane & Ariana Grande""" | |
| 2018 A Very Wicked Halloween Herself Special | |
| 2018 Ariana Grande at the BBC Herself Special | |
| 2018 Ariana Grande: Dangerous Woman Diaries Herself YouTube Docuseries | |