Boonsak Ponsana is a Thai badminton player. His younger sister Salakjit Ponsana is also part of the Thailand badminton team. He got a Bachelor of Laws from Sri Patum.

Salakjit Ponsana is a Thai retired badminton player. She competed in the women's singles event at the 2004 Athens and 2008 Beijing Olympics. Her brother, Boonsak Ponsana is also a Thai olympian.