Philip Jaisohn (7 January 1864 – 5 January 1951) was a Korean doctor, surgeon, journalist, politician and educator. His Korean name was Seo Jae-pil (). It was anglicized. His nicknames were Songjae (송재; 松齋), Ssanggyeong (쌍경; 雙慶) and his Chinese style name was Yun Kyung (윤경;允卿). His other name was Philip Jason, a penname was N. S. Osia.