Peter Garland Glover (January 14, 1792 – October 27, 1851) was a U.S. politician from Missouri.

He was born in Buckingham County, Virginia, and later moved with his family to Callaway County, Missouri. From 1830 to 1832, he served as a county judge. In 1832, he was elected to the Missouri House of Representatives. From 1835 to 1837, he served as State Auditor. From 1837 to 1839, he served as Secretary of State. He also served the state government as Register of Lands and School Commissioner. From 1843 until his death in 1851 in Osage County, Missouri, he served as State Treasurer of Missouri.