List of school districts numbered 18

School District 18 may refer to, among other things:

United States

• Wells-Ogunquit Community School District 18, in Maine
• Garden City Union Free School District 18, in New York
• Plainedge Union Free School District, in New York
• Blue Ridge Community Unit School District 18, in Illinois
• Fairmount School District 18, in Wyoming
• Apache County School District No. 18, in Arizona
• Cochise County School District No. 18, in Arizona
• Greenlee County School District No. 18, in Arizona

Canada

• Black Gold Regional Division No. 18, in Alberta
• New Brunswick School District 18
• School District 18 Golden, in British Columbia