PTSO stands for Parent Teacher Student Organization. It is a group that serves as a voice for all children, a relevant resource for families and communities, and a strong advocate for the education and well-being of every child. The purpose of the PTSO is to promote quality education, expand the arts, encourage community involvement, and work for a healthy environment and safe neighborhoods. Parents, teachers, administrators, and other concerned adults discuss ways to achieve these goals.

The term PTSO can also have other meanings on social media platforms like TikTok and Instagram. For example, on TikTok, PTSO could mean "Put That Sh*t On," which is used to compliment and hype up someones outfit. Another meaning that PTSO can have is "Pictures To Show Off". However, these meanings are not related to the Parent Teacher Student Organization.