Walnut Grove is a historic house on a Southern plantation in Mount Pleasant, Maury County, Tennessee, USA.

It was designed in the Greek Revival architectural style by Nathan Vaught, a local master builder.

[2] A detached kitchen still exists on the property, built prior to 1826 and surviving the 1857 fire; according to local lore it is the oldest brick building in the Mount Pleasant area.

The home has been updated where the six inch flooring has been repaired and refurbished as well as the brick on both buildings.

It has been listed on the National Register of Historic Places since March 8, 1984, significant as an example of late 1850s Greek Revival style and its association with Lawrence and with Nathan Vaught.