Jack's Reef is a hamlet in the Town of Van Buren, New York in Onondaga County, United States.

Subsequently, a canal was cut approximately one mile to the north, which shortened the navigation route.

Consequently, Jack's Reef lost virtually all commercial and much recreational traffic.

year-round homes are being built nearby, as the hamlet is within commuting range of Syracuse.

An archeological site was first excavated in Jack's Reef beginning in the 1930s.