Gretchen K. Campbell (born c. 1980)[1] is an American atomic, molecular, and optical physicist associated with the National Institute of Standards and Technology.

She works in the field of atomtronics and has received awards in recognition of her research contributions on Bose-Einstein condensates.

[7] In 2009, she moved to become a fellow of the Joint Quantum Institute (JQI) affiliation between NIST and the University of Maryland.

[10] Campbell currently works in atomtronics, an emerging research area into circuitry based on a flow of atoms rather than electrons.

[11] Her contributions have included designing a weak link as an additional circuit component and observation of hysteresis effects.

Campbell and her collaborator Stephen Eckel are interested to see if their model can provide insight into Hubble friction when a sound wave perturbs the BEC.