| Year | Title | Channel | Role | Notes |
| 2013 | Live at the Apollo | BBC One | Himself | Series 9, episode 3 |
| 2015 | Live at the Apollo | BBC One | Himself | Series 11, episode 4 |
| Yonderland | Sky One | Priest | Series 2, Episode 5 |
| Taskmaster | Dave | Himself | Contestant; Series 1 |
| The Apprentice: You're Fired! | BBC Two | Himself | Series 11, regular panellist |
| 2015-2016 | Asian Provocateur | BBC Three | Himself | |
| 2017 | Anthony Joshua vs Rob & Romesh | Sky One | Co-presenter with Rob Beckett | One-off special |
| Romesh: Talking to Comedians | BBC Three | Presenter | 1 series |
| Comedy Playhouse: Mister Winner | BBC One | Ajay | One-off comedy |
| 2018 | The Misadventures of Romesh Ranganathan | BBC Two | Presenter | 4 series and Christmas special |
| Judge Romesh | Dave | Presenter | 2 series |
| The Reluctant Landlord | Sky One | Romesh | 2 series 13 episodes |
| Romesh's Look Back to the Future | Sky One | Host | One-off comedy panel show |
| Just Another Immigrant | Showtime | Himself | 10 episodes; documentary series |
| 2019 | Jamie and Jimmy's Friday Night Feast | Channel Four | Guest | 1 episode; 4 January 2019 |
| 2019–present | Rob & Romesh Vs... | Sky One | Co-presenter with Rob Beckett | 5 series |
| The Ranganation | BBC Two | Presenter | 5 series |
| 2020 | Have I Got News for You | BBC One | Guest host | 11 December 2020 |
| Sunday Brunch | Channel Four | Guest | 13 December 2020 |
| A League of Their Own: Christmas Party 2020 | Sky One | Himself | 19 December 2020 |
| One Night In... Hamleys | Channel Four | Himself | 24 December 2020 |
| King Gary | BBC One | Stuart Williams | Series 1, Christmas Special and Series 2 |
| 2021 | Staged | BBC One | Himself | |
| A League of Their Own Roadtrip: Loch Ness to London | Sky One | Himself | 8 April 2021 |
| Have I Got News for You | BBC One | Presenter | 17 May 2021 |
| 2021–present | The Weakest Link | BBC One | Host | New host |
| 2022 | DNA Journey | ITV | Himself | 29 September 2022 |
| Rob and Romesh vs Christmas On Ice | Sky Max | Himself | Alongside Rob Beckett; 21 December 2022 |
| 2022, 2024 | The Misinvestigations of Romesh Ranganathan | BBC | Himself | 2 series |
| 2022–2024 | Avoidance | BBC One | Jonathan | Co-creator & co-writer (second series commissioned) |
| 2023 | Romantic Getaway | Sky Comedy | Deacon | Co-writer |
| 2023–present | British Academy Television Awards | BBC One | Co-host | With Rob Beckett |
| 2024 | Romesh Ranganathan's Parents’ Evening | ITV | Host | Celebrity game show |
| 2025 | Romesh: Can’t Knock the Hustle | Sky Max | Himself | Travelogue series |
| 2026 | LOL: Last One Laughing UK | Amazon Prime Video | Himself | Contestant; Series 2 |