Guanziling Hot Spring (Chinese: 關子嶺溫泉; pinyin: Guānzilǐng Wēnquán; Wade–Giles: Kuan1-tzu1-ling3) is a hot spring in Baihe District, Tainan, Taiwan.

The hot spring was discovered by the Japanese troops in the area and it was named Taiwan's No.

[1] The hot spring is located at an altitude of 270 meters above sea level.

This rare spring releases methane, which has been burning constantly for around three centuries.

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