The Large $N_c$ limit of QCD on the lattice

We review recent progress in the study of the large $N_c$ limit of gauge theories from lattice simulations. The focus is not only the planar limit but also the size of $\mathcal{O}(N_c^{-1})$ corrections for values of $N_c\gtrsim 3$\mathrm{.}Someconcreteexamplesofthetopicsweincludearetestsoflarge-$N_c$ factorization, the topological susceptibility, the glueball, meson and baryon spectra, the chiral dependence of masses and decay constants, and weak matrix elements related to the $\mathrm{\Delta }I=1\mathrm{/}2$ rule in kaon decays.