Gay Hill is an unincorporated area and a ghost town in Washington County, Texas, United States.

[1] Gay Hill is located on Farm to Market Road 390, twelve miles north-west of Brenham in Washington County.

[2] The Glenblythe Plantation, owned by Scottish immigrant and nurseryman Thomas Affleck (1812-1868), was located in Gay Hill.

[3] From 1853 to 1888, Reverend James Weston Miller (1815–1888) served as the Director of the Live Oak Female Seminary, a defunct women's college.

[2] In 1881, the Gulf, Colorado and Santa Fe Railway added a stop two miles away from Gay Hill.