Danxia Zichun (1064–1117) (Chinese: 丹霞子淳; Wade–Giles: Tan-hsia Tzu-ch'un; Hànyǔ pīnyīn Dānxiá Zichún; Japanese: Tanka Shijun) was a Zen Buddhist monk during the Song Dynasty.

He is buried in south of Mt Hong near the modern city of Wuhan.

[1] While not a particularly notable monk himself, his three students, Hongzhi Zhengjue, Zhenxie Qingliao, Huizhao Qingyu, were each especially famous during their lifetimes.

He is the only student of Furong Daokai that has a collection of recorded sayings that has survived to the present.

For example, he is recorded as saying, "You must completely let go of all worldly concerns and sit totally still in the dry wood hall.