Marthaville is an unincorporated community and census-designated place (CDP) in Natchitoches Parish, Louisiana.

The town, during its peak, had a train stop, a bank, a general store, a bar, a hotel, etc.

Now it is an unincorporated community, still having the store, post office, etc., and it is home to two churches in the area in addition to an Elementary and Junior High school.

The Marthaville Good Ole Days Festival[4] is "A two-day September festival that celebrates the past with activities for the whole family, including games, live entertainment, arts and crafts, a parade, and delicious food."

The Marthaville Good Ole Days Festival attracts about 1,500 people to the area.