The fights happened last week, one on Thursday and two on Friday.
No one was seriously hurt, but a security guard was among those taking punches in the parking lot.
The clips were taken in the student parking lot at Greece Athena, as school was letting out.
The fight starts with two people, and then others get involved. The video captures several pairs punching and kicking each other.
Police don't know if the events were connected.
Students tell News 8 there were rumors circulating throughout the school that there would be a fight after class.
The GCSD District issued this statement:
Given the video evidence received today, building administrators and district leaders are working to identify other students in the videos and have been interviewing witnesses to obtain more information. Greece Police are also working with school officials to determine whether additional criminal charges are warranted. Additional resources, including school administrators and security staff, will be deployed to Athena to assist with the investigation and response plan.
Altercations between students are never appropriate. The use of social media has the ability to inflame, but we will be using the same tools to improve security and reporting. Thus far, these videos have helped us identify a total of nine students involved and we will use this situation to educate students about more appropriate ways to handle disputes.
Student safety is always our priority and fighting will not be tolerated at any of our schools. The district is currently working with Partners in Restorative Initiatives to expand programs and supports for students so they have the tools necessary to peacefully resolve disagreements.