Park Seong-yeon Filmography
| 2025 | Typhoon Family (TV Series) · as Kim Eul-Nyeo |
| 2025 | Aema (TV Series) · as Gil Shin-Ja |
| 2025 | The Nice Guy (TV Series) · as 고정님 |
| 2025 | Nine Puzzles (TV Series) · as Kong Yeong Im / Ena's Housekeeper |
| 2025 | Pump Up the Healthy Love (TV Series) · as Lim Seong-Im |
| 2024 | How Have You Been · as Young-Hee |
| 2024 | Missing Crown Prince (TV Series) · as Kim Sang-Gung |
| 2024 | Queen of Tears (TV Series) · as Kang-Mi |
| 2023 | Daily Dose of Sunshine (TV Series) · as Internal Medicine Head Nurse |
| 2023 | Behind Your Touch (TV Series) · as Jung Hyeon-Ok |
| 2023 | |
| 2022 | Never Give Up (TV Series) · as Oh Sharon |
| 2022 | Bloody Heart (TV Series) · as Senior Court Lady Choi |
| 2022 | Take Care of My Mom · as Mi-Sook |
| 2022 | Our Blues (TV Series) · as Family Court Investigator |
| 2021 | Take Care of My Mom · as Mi-Sook |
| 2021 | The Siren · as Seo Hye-Sun |
| 2021 | Melancholia (TV Series) · as Yoo Sun-Ah |
| 2021 | Reflection of You (TV Series) · as Lee Dong-Mi |
| 2021 | Mine (KR) (TV Series) · as Joo Min-Su |
| 2020 | Do Do Sol Sol La La Sol (TV Series) · as Lee Seung Gi's Mother |
| 2020 | |
| 2020 | Record of Youth (TV Series) · as Lee Kyung-Mi |
| 2020 | SF8 (TV Series) · as Manxin Church Member |
| 2019 | Kim Ji-young: Born 1982 · as Manager Kim |
| 2019 | Secret Boutique (TV Series) · as Woo Sun-Jeong |
| 2019 | Love Alarm (TV Series) · as Jojo's Aunt |
| 2019 | Let Us Meet Now · as Sung-Yeon (segment 3) |
| 2019 | Abyss (TV Series) · as Park Mi-Soon |
| 2018 | |
| 2018 | The Accidental Detective 2: In Action · as Nurse |
| 2018 | Believer · as Sign Language Interpreter |
| 2017 | Last Child · as Hyeon-Kyu's Wife |
| 2017 | |
| 2016 | The Wailing · as Kwon Myung-Joo |
| 2015 | The Silenced · as Counselor |
| 2014 | Cart · as Cashier 3 |
| 2013 | When Winter Screams · as Yeon-Soo's Wife |
| 2012 | |
| 2010 | KBS Drama Special (TV Series) · as Seo Hye-Seon |
| 2010 | Secret Reunion · as Lee Han-Kyu's Wife (voice) |
| 1999 | Peppermint Candy · as Female Factory Worker 9 |