David Wagner (born 1965) is a Canadian mathematics educator and full professor at the University of New Brunswick, Fredericton, Canada.

He is co-editor-in-chief of Educational Studies in Mathematics.

[1] Previously, he was associate editor of Educational Studies in Mathematics since 2016.

He was managing editor of For the Learning of Mathematics[2] from 2011 to 2018.

His main area of expertise is mathematics education.