The Thomas Select School is a historic log building in rural Butler County, Ohio, United States.

Numerous log schoolhouses were built throughout early Ohio, but few have survived; the Thomas Select School is important partly because of its very existence.

[2] Built in 1810,[1] the school was associated with a Welsh immigrant church in the small community of Shandon.

Using their home as the schoolhouse, Thomas and his wife taught both girls and boys.

[2] As the house was a parsonage, it remained in the church's ownership until 1885, when the trustees sold it to a family named Robinson, which owned the building until selling it in 1947.