Empress Thừa Thiên (Vietnamese: Thừa Thiên Cao Hoàng Hậu; chữ Hán: 承天高皇后, 1762–1814), born Tống Phúc Thị Lan (宋福氏蘭), was the first wife of Nguyễn Phúc Ánh (future Emperor Gia Long) and mother of Crown Prince Nguyễn Phúc Cảnh.

She was a daughter of general Tống Phước Khuông of the Nguyễn lords.

Nguyễn Ánh married her when he was 18.

Empress Thừa Thiên had two sons with Gia Long: Nguyen Phuc Chieu (who died after several days) and Crown Prince Nguyễn Phúc Cảnh.

After her death, she was buried at Gia Long's Thiên Thọ tomb, alongside the Emperor.