Axion-like particles (ALPs) are pseudo-Goldstone bosons that emerge in the low-energy limit of various extensions of the Standard Model. Concrete ALP models include the axion proposed to solve the strong CP problem and can provide a portal to dark matter. In this talk, I focus on searches for ALPs using top quark physics at the LHC. Since the ALP couples more strongly to heavier fermions, ALPs can leave significant virtual effects in the top kinematic distributions in top-antitop production. I show how to constrain the ALP’s properties from precision measurements of top quark observables. In addition, I discuss recent developments in probing the ALP-top coupling at colliders.
