"To interview with the Astros is very exciting," Acta told Houston television station KRIV on Friday.
Acta did not say when he would be meeting with club officials. He was fired by the Nationals during the season.
Astros general manager Ed Wade said the club would announce each of the team's candidates for manager 24 hours prior to their interviews.
The Astros finished 74-88 in 2009. They fired Cecil Cooper on Sept. 21 and promoted third-base coach Dave Clark to run the team over the final two weeks. Clark is a candidate for the manager's job.