  We calculate the electric charge radii of the SU(3) pseudoscalar mesons and
the SU(3) octet baryons in quenched and partially quenched chiral perturbation
theory. We work in the isospin limit, up to next-to-leading order in the chiral
expansion, and to leading order in the heavy baryon expansion. The results are
necessary for the extrapolation of future lattice calculations of meson and
baryon charge radii. We also derive expressions for the nucleon and pion charge
radii in SU(2) flavor away from the isospin limit.
