Chen Saijuan (Chinese: ???; born May 1951), also known as Sai-Juan Chen, is a Chinese hematologist and molecular biologist with a research focus on leukemia cytogenetics.
She is a professor and Director of the State Key Laboratory of Medical Genomics at Shanghai Jiao Tong University School of Medicine, Director of the Shanghai Institute of Hematology, and Vice-Chairwoman of the Chinese Medical Association.
She has made important discoveries in the pathogenesis of leukemia and developed therapies to treat acute promyelocytic leukemia (APL) and other types of leukemia.