| Hangul: | 송익필 |
| Hanja: | 宋翼弼 |
| Rr: | Song Ikpil |
| Mr: | Song Ikp'il |
| Hangulja: | 운장 |
| Hanjaja: | 雲長 |
| Rrja: | Unjang |
| Mrja: | Unjang |
| Hangulho: | 구봉, 현승 |
| Hanjaho: | 龜峰, 玄繩 |
| Rrho: | Gubong, Hyeonseung |
| Mrho: | Kubong, Hyŏnsŭng |
| Hangulph: | 문경 |
| Hanjaph: | 文敬 |
| Rrph: | Mungyeong |
| Mrph: | Mun'gyŏng |
Song Ikpil (; February 10, 1534 – August 8, 1599) was a Korean politician and Neo-Confucian scholar and educator of the Joseon period.[1] [2] His art names were Gubong and Hyeonseung, and his courtesy name was Unjang . Song was best friends of Yi I, Seong Hon and Jeong Cheol and taught Kim Jang-saeng.