The Mohonasen Central School District (also known as the Rotterdam-Mohonasen Central School District) is a public school district in New York State. Located in Schenectady County and services 2,850 students mostly from the town of Rotterdam and also draws in students from the towns of Colonie and Guilderland in Albany County. The district has a student to teacher ratio of 13:1
The Board of Education election is held annually on the third Tuesday of May, alongside the district's annual budget vote.