Ni Zan (simplified Chinese: 倪瓒; traditional Chinese: 倪瓚; pinyin: Ní Zàn; Wade–Giles: Ni Tsan; 1301–1374) was a Chinese painter during the Yuan and early Ming periods. Along with Huang Gongwang, Wu Zhen, and Wang Meng, he is considered to be one of the "Four Masters of Yuan".