Ok Ja-yeon Filmography
| 2025 | Nine Puzzles (TV Series) · as Seo Yang Hui / Chi-Mok's Wife |
| 2025 | The Old Woman with the Knife · as Cho-Yeop |
| 2024 | Gangnam B-Side (TV Series) · as Choi Soo-In |
| 2024 | Mission: Cross · as Baek Seon-U |
| 2024 | Alienoid: The Return to the Future · as Fellow Doctor |
| 2023 | Gyeongseong Creature (TV Series) · as Na Young-Choon |
| 2023 | LTNS (TV Series) · as Jung Min-Soo |
| 2023 | Queenmaker (TV Series) · as Guk Ji-Yeon |
| 2022 | Under the Queen's Umbrella (TV Series) · as First Junior Consort Hwang |
| 2022 | Big Mouth (2022) (TV Series) · as Hyeon Joohee |
| 2022 | |
| 2022 | Jump Like a Witch (TV Series) |
| 2021 | The Veil (KR) (TV Series) · as Lin Wei |
| 2021 | On the Line · as Detective 1 |
| 2021 | Mine (KR) (TV Series) · as Kang Ja-Kyeong |
| 2020 | The Uncanny Counter (TV Series) · as Baek Hyang-Hui |
| 2019 | |
| 2019 | The Snob · as Tak So-Young |
| 2019 | The Beast · as Jong-Chan's Wife |
| 2019 | Miss & Mrs. Cops · as New Pacific Suicide Female Victim |
| 2019 | Different Dreams (TV Series) · as Oh Kwang-Shim |
| 2018 | |
| 2018 | Wok of Love (TV Series) · as Lee Ji Kyung |
| 2017 | Drama Stage (TV Series) · as Joon-Hee |
| 2014 | Bad Guys (KR) (TV Series) · as Yang Pil-Soon |
| 2013 | I Live Alone (TV Series) · as Self |
| 2010 | Running Man (TV Series) · as Self |