Joseph Grigsby Smyth (February 25, 1847 – June 8, 1915) was a Texan politician who served in the Texas House from 1870-1873.

[3] He was elected to the Texas House in February 1870 at the age of 22, about 2 weeks before his birthday.

He married Epsie Belle Miller on June 5, 1884.

They ended up having 8 children together between September 1885 and February 1901.

Joseph later died June 8, 1915, at the age of 68.