| When Life Gives You Tangerines | 2025 | Actress | Oh Ae-sun |
| IU Feat. HYEIN, Joe Won Sun: Shh.. | 2024 | Actress | IU |
| IU: Shopper | 2024 | Actress | IU |
| IU: Holssi | 2024 | Actress | IU |
| IU: Love wins all | 2024 | Actress | IU |
| Dream | 2023 | Actress | Lee So-min |
| Agust D Feat. IU: People Pt.2 | 2023 | Actress | IU (voice) |
| Broker | 2022 | Actress | Moon So-young |
| Jay Park Feat. IU: Ganadara | 2022 | Actress | IU |
| IU: Strawberry Moon | 2021 | Actress | IU |
| Akmu with IU: Nakka | 2021 | Actress | IU (voice) |
| IU: Celebrity | 2021 | Actress | IU |
| IU Feat. SUGA of BTS: eight | 2020 | Actress | IU |
| IU: Blueming | 2019 | Actress | IU |
| Hotel Del Luna | 2019 | Actress | Jang Man-wol |
| Shades of the Heart | 2019 | Actress | Mi-young |
| Persona | 2019 | Actress | Ji-eun |
| Epik High Feat. Crush: Lovedrunk | 2019 | Actress | IU |
| IU: BBIBBI | 2018 | Actress | IU |
| Zico Feat. IU: SoulMate | 2018 | Actress | IU |
| My Mister | 2018 | Actress | Lee Ji-an |
| IU: With a Determined Heart to Forget You | 2018 | Actress | IU |
| Real | 2017 | Actress | Awards ceremony guide |
| IU: Ending Scene | 2017 | Actress | IU |
| IU Feat. G-Dragon: Palette | 2017 | Actress | IU |
| IU: Through the Night | 2017 | Actress | IU |
| Moon Lovers: Scarlet Heart Ryeo | 2016 | Actress | Hae Soo (as Ji-eun Lee) |
| IU: Twenty-Three | 2015 | Actress | IU |
| THE Producers | 2015 | Actress | Cindy |
| IU: My Old Story | 2014 | Actress | IU |
| Pretty Boy | 2013–2014 | Actress | Kim Bo-tong |
| IU Feat. Jang Yi-jeong: Friday | 2013 | Actress | IU |
| IU: The Red Shoes (Performance Version) | 2013 | Actress | IU |
| IU: The Red Shoes | 2013 | Actress | IU |
| IU: Monday Afternoon | 2013 | Actress | IU |
| You Are the Best! | 2013 | Actress | Lee Soon-shin |
| IU: Beautiful Dancer | 2013 | Actress | IU |
| IU: You and I - Japanese Version | 2012 | Actress | IU |
| IU: Every End of the Day - Short Version | 2012 | Actress | IU |
| IU: Good Day - Japanese Version | 2012 | Actress | IU |
| Salamander Guru and the Gang | 2012 | Actress | Ji-eun |
| IU: Last Fantasy | 2012 | Actress | IU |
| Dream High | 2011–2012 | Actress | Kim Pil-sook |
| IU: I Hoppin U Music Video | 2011 | Actress | IU |
| IU: Melody of the Wind Music Video | 2011 | Actress | IU |
| IU: Memories of the Sea Music Video | 2011 | Actress | IU (voice) |
| IU: You and I - Performance Version | 2011 | Actress | IU |
| IU: YOU&I | 2011 | Actress | IU |
| IU: Let's Catch the Bus Music Video | 2011 | Actress | IU |
| IU: Hold My Hand | 2011 | Actress | IU |
| Welcome to the Show | 2011 | Actress | IU |
| K.will: My Heart Beating Music Video | 2011 | Actress | IU |
| IU: Only I Didn't Know - IU Version Music Video | 2011 | Actress | IU |
| IU: Only I Didn't Know | 2011 | Actress | IU |
| IU: Because I'm a Girl Music Video | 2010 | Actress | IU |
| IU: Good Day | 2010 | Actress | IU |
| Dora and Diego's 4-D Adventure Catch That Robot Butterfly | 2010 | Actress | Korean Gaining Video Teenager (as Lee Ji-eun) |
| IU: You Are Always Like That Music Video | 2009 | Actress | IU |
| IU: Marshmallow | 2009 | Actress | IU |
| IU: Boo | 2009 | Actress | IU |
| IU: You Know (Rock Version) | 2009 | Actress | IU |
| IU: Lost Child | 2008 | Actress | IU |
| IU: Strawberry Moon | 2021 | Composer | Composer |
| IU Feat. SUGA of BTS: eight | 2020 | Composer | Composer |
| IU: Ending Scene | 2017 | Composer | Composer |
| IU Feat. G-Dragon: Palette | 2017 | Composer | Composer |
| IU: Through the Night | 2017 | Composer | Composer |
| IU: Twenty-Three | 2015 | Composer | Composer |
| IU Feat. Jang Yi-jeong: Friday | 2013 | Composer | Composer |
| IU: The Red Shoes (Performance Version) | 2013 | Composer | Composer |
| IU: The Red Shoes | 2013 | Composer | Composer |
| IU: You and I - Japanese Version | 2012 | Composer | Composer |
| IU: Every End of the Day - Short Version | 2012 | Composer | Composer |
| IU: Every End of the Day Video | 2012 | Composer | Composer |
| IU: Good Day - Japanese Version | 2012 | Composer | Composer |
| IU: I Hoppin U Music Video | 2011 | Composer | Composer |
| IU: Melody of the Wind Music Video | 2011 | Composer | Composer |
| IU: Memories of the Sea Music Video | 2011 | Composer | Composer |
| IU: You and I - Performance Version | 2011 | Composer | Composer |
| IU: YOU&I | 2011 | Composer | Composer |
| Jam Docu Kangjung | 2011 | Composer | Composer |
| IU: Let's Catch the Bus Music Video | 2011 | Composer | Composer |
| IU: Hold My Hand | 2011 | Composer | Composer |
| IU: Because I'm a Girl Music Video | 2010 | Composer | Composer |
| IU: Good Day | 2010 | Composer | Composer |
| IU: You Are Always Like That Music Video | 2009 | Composer | Composer |
| IU: Boo | 2009 | Composer | Composer |
| IU: You Know (Rock Version) | 2009 | Composer | Composer |
| IU: Strawberry Moon | 2021 | Music Department | lyricist |
| The Shadow's Desire Video | 2010 | Thanks | special thanks |
| Crash Landing on You | 2019–2020 | Soundtrack | performer: "Give You My Heart" |
| Hotel Del Luna | 2019 | Soundtrack | performer: "Happy Ending" |
| THE Producers | 2015 | Soundtrack | performer: "Heart" |
| Dream High | 2011–2012 | Soundtrack | performer: "Dream High", "Lullaby" |
| IU Concert: The Winning | 2025 | Self | Self |
| IU's Palette | 2020–2024 | Self | Self - Host |
| Suchwita | 2023 | Self | Self - Guest |
| IU Concert: The Golden Hour | 2023 | Self | Self |
| SUGA: Road to D-DAY | 2023 | Self | Self |
| Golden Disc Awards | 2010–2022 | Self | Self - Performer |
| Melon Music Awards | 2009–2021 | Self | Self - Performer |
| You Quiz on the Block | 2021 | Self | Self |
| Music Bank | 2009–2021 | Self | Self |
| House on Wheels | 2020 | Self | Self - Guest |
| Knowing Bros | 2018 | Self | Self - Guest |
| SBS Gayo Daejun | 2017 | Self | Self - Host |
| Hyori's Homestay | 2017 | Self | Self |
| Mnet Asian Music Awards | 2014 | Self | Self - Performer |
| M Countdown | 2008–2014 | Self | Self - Performer |
| Weekly Idol | 2013 | Self | Self - Guest |
| Show! Music Core | 2010–2013 | Self | Self |
| Running Man | 2011–2013 | Self | Self |
| IU: Every End of the Day Video | 2012 | Self | IU |
| Strong Heart | 2010–2011 | Self | Self - Guest |
| Kim Yuna's Kiss and Cry TV Series | 2011 | Self | Self |
| Inkigayo | 2008–2011 | Self | Self - Host |
| Immortal Songs: Singing the Legend TV Series | 2011 | Self | Self |
| Heroes | 2010–2011 | Self | Self - Regular Member |
| Radio Star | 2011 | Self | Self - Guest |
| Idol Star Athletics Championships | 2011 | Self | Self - Athlete |
| Star Dance Battle TV Mini Series | 2010 | Self | Self - Performer |
| Hello Baby | 2010 | Self | Self |
| Star King | 2009 | Self | Self - Guest |
| Pops in Seoul | 1998 | Self | Self |