Poynor is a town in Henderson County, Texas, United States.

Poynor is located in southeastern Henderson County 17 miles (27 km) southeast of Athens, the county seat, and 21 miles (34 km) northwest of Jacksonville.

According to the United States Census Bureau, Poynor has a total area of 2.4 square miles (6.1 km2), all land.

There were 121 housing units at an average density of 51.1 per square mile (19.7/km2).

The town is served by the LaPoynor Independent School District.