St. Johns Cemetery (alternatively St. John[1] or St. John's[2]) is a Catholic cemetery located in Prairie Township, Union County, South Dakota, with links to St. Teresa of Avila parish and church, in the Roman Catholic Diocese of Sioux Falls.

[1][3] The cemetery is one of a group of four adjacent cemeteries 1.2 miles south-east of Beresford, of which St. John is the is farthest west.

The earliest known burial is that of a child named Felix Phillip Mangan in 1886.

As of 2001, the remains of more than 700 individuals were interred at St. John Cemetery.

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