Jinseong of Silla (c. 865–897) was the fifty-first ruler of the Korean kingdom, Silla in 887–897. She was also Silla's third and last reigning queen after Seondeok and Jindeok. Her reign saw the weakening of Unified Silla and the beginning of the Later Three Kingdoms period. According to her older brother Jeonggang, she was smart by nature and tall like a man.