Lee Hye-ri (Hangul: 이혜리; born June 9, 1994), better known mononymously as Hyeri, is a South Korean singer, actress, and television personality. She rose to fame as the youngest member of the girl group Girl's Day and was named as the "Nation's Little Sister" by the South Korean media due to her immense popularity after appearing as a fixed cast member on Real Men (2014). She later became known for her leading role in television drama Reply 1988 (2015), which was the highest-rated drama in Korean cable television history at the time. She ranked third in the Forbes Korea Power Celebrity list in 2016 and is one of the highest-paid commercial models in South Korea. She was a regular cast member on Amazing Saturday (2018-2020).
| Movie | Night Fever | A-ri | 2026 |
| Series | Dream to You | Joo Yi-jae | 2026 |
| Series | Office Workers | Self | 2025-02-22 |
| Series | Friendly Rivalry | Yoo Je-yi | 2025-02-10 |
| Series | Beyond the Bar | 2025-08-02 | |
| Series | 응답하라 1988 10주년 | Unknown | 2025-12-19 |
| Series | Hyeri's Club | Host / Herself | 2024-01-05 |
| Series | Agents of Mystery | Unknown | 2024-06-18 |
| Movie | Victory | Pil-sun | 2024-08-14 |
| Series | Dex's Fridge Interview | self | 2023-02-23 |
| Series | Salon Drip | Self | 2023-03-23 |
| Series | HYEMILEEYECHAEPA | Self | 2023-03-12 |
| Series | May I Help You? | Baek Dong-joo | 2022-10-19 |
| Series | Moonshine | Kang Ro-seo | 2021-12-20 |
| Series | My Roommate Is a Gumiho | Lee Dam | 2021-05-26 |
| Series | House on Wheels | Self | 2020-06-11 |
| Series | Record of Youth | Lee Hae Ji [Actress] | 2020-09-07 |
| Series | Miss Lee | Lee Seon-sim | 2019-09-25 |
| Movie | My Punch-Drunk Boxer | Min-ji | 2019-10-09 |
| Series | You Quiz on the Block | Self | 2018-08-29 |
| Series | Amazing Saturday | Self | 2018-04-07 |
| Movie | Monstrum | Myeong-i | 2018-09-12 |
| Series | Two Cops | Song Ji-An | 2017-11-27 |
| Series | Candy in My Ear | Unknown | 2016-08-17 |
| Series | Entertainer | Jung Geu-Rin | 2016-04-20 |
| Series | Let's Eat Dinner Together | Herself | 2016-10-19 |
| Series | 请回答1988 (摄影现场篇) | 成德善 | 2016-11-21 |
| Series | Hyde, Jekyll, Me | Min Woo-jeong | 2015-01-21 |
| Series | Girl's Day's One Fine Day | Unknown | 2015-08-03 |
| Series | Reply 1988 | Sung Deok-sun | 2015-11-06 |
| Series | Men on a Mission | Self | 2015-12-05 |
| Series | I Am a Man | Unknown | 2014-08-08 |
| Series | Detectives of Seonam Girls' High School | Lee Ye-hee | 2014-12-16 |
| Series | Be Arrogant | Hyeri | 2014-10-27 |
| Series | Home Alone | Self | 2013-03-22 |
| Series | Baeksang Arts Awards | Self | 2012-04-26 |
| Series | Tasty Life | 장미현 | 2012-04-28 |
| Series | The Show | MC | 2011-04-15 |
| Series | SNL Korea | Herself | 2011-12-03 |
| Series | Idol Star Athletics Championships | Host | 2010-09-25 |
| Series | Running Man | Unknown | 2010-07-11 |
| Series | You Hee-yeol's Sketchbook | Self | 2009-04-24 |
| Series | 2 Days and 1 Night | Unknown | 2007-08-05 |
| Series | Hometown Over the Hill | Ma Dong Sook | 2007-10-24 |
| Series | Infinite Challenge | Self | 2005-04-23 |
| Series | MBC Music Festival | Self - Host | 2005-12-31 |
| Series | KBS Entertainment Awards | Host | 2002-12-28 |
| Series | MBC Entertainment Awards | Self - MC | 2001-12-29 |
| Series | KBS Drama Awards | Host | 1987-12-31 |