John Sweller (born 1946) is an Australian educational psychologist who is best known for formulating an influential theory of cognitive load.

[2] Sweller was educated at the University of Adelaide where he received a Bachelor of Arts degree in 1969[citation needed] followed by a PhD from the department of psychology in 1972.

His doctoral research investigated effects of discrimination training on subsequent shift learning in animals.

Sweller has authored more than eighty academic publications, mainly reporting research on cognitive factors in instructional design,[3] with specific emphasis on the instructional implications of working memory limitations and their consequences for instructional procedures.

[4][5][6][7] Sweller was elected a Fellow of the Academy of the Social Sciences in Australia (FASSA) in 1993.