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Pittsburgh Regional Science and Engineering Fair (PRSEF) 

Teacher registration opens Sept 1st  |  Category Judge registration opens December 1st

The Pittsburgh Regional Science & Engineering Fair (PRSEF) will celebrate another year of open competition of research projects in the fields of science, mathematics, and engineering in April. This competition is open to all students in grades 6-12 from the 21 counties within Western Pennsylvania and Garrett County, Maryland.

The Science Fair has been a Pittsburgh tradition since 1940. It is also the third oldest science fair in the United States under the affiliation of Society for Science, which runs the Regeneron International Science and Engineering Fair (ISEF) and the Thermo Fisher Scientific Junior Innovators Challenge middle school competition.

Are you new to PRSEF? Do you have questions about registration or completing the required forms? View reference materials, resources and user manuals for at or email


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TeachersAdult Sponsors (teachers, home school parents, club leaders) - Register your school or organization for the Pittsburgh Regional Science and Engineering Fair. Students – You must register for the fair through an Adult Sponsor who is already registered. Do not use this link to register yourself for the fair.

Judges: Register to Category Judge at the Pittsburgh Regional Science and Engineering Fair.