Nathan G. Macias (born January 22, 1960) is a businessman and public policy analyst from Bulverde, Texas, who is a Republican former member of the Texas House of Representatives. He held the District 73 seat for one term between the tenures of fellow Republicans Carter Casteel and the current representative, Doug Miller, both from New Braunfels. The district now encompasses Comal, Gillespie, and Kendall counties, but prior to 2013, it also included Bandera County.