| Empress Zhangmu | |
| Consort: | yes |
| Succession: | Empress consort of the Song dynasty |
| Reign: | 997 –1007 |
| Spouse: | Emperor Zhenzong of Song |
| Issue: | Zhao You, Crown Prince DaoxianUnnamed sonUnnamed son |
| Posthumous Name: | Empress Zhangmu (章穆皇后) |
| Predecessor: | Empress Mingde |
| Successor: | Empress Liu |
| Birth Date: | c. 975 |
| Death Place: | Kaifeng, Henan |
| Burial Place: | Gongyi, Henan |
| Full Name: | Family name Guo (郭氏) |
| Father: | Guo Shouwen (郭守文) |
| Mother: | Lady Liang (梁氏) |
| Succession1: | Lady of Lu State 鲁国夫人; |
| Reign1: | 991 – 996 |
| Succession2: | Lady of Qin State 秦国夫人 |
| Reign2: | 996 – 997 |
Empress Guo (c. 975 – 4 May 1007[1]) was a Chinese empress consort of the Song Dynasty, married to Emperor Zhenzong of Song.
She became the primary consort of Zhezong in 991, in a marriage arranged by his father the emperor.[2] The marriage produced a son, which died in childhood. She became his empress consort when he succeeded to the throne in 997.
As Lady of Lu State:
As Empress: