Results of searches for particles with anomalously high or fractional
electric charge produced in proton-proton collisions in the ATLAS detector
at a center-of-mass energy of 13 TeV are presented. Such signatures,
encompassing particles with charges from 2 to 60 times the electron charge,
involve high levels of ionization in the ATLAS detector and can arise from
magnetic monopoles or models involving technicolor, doubly charged Higgs
bosons or composite dark matter models.