  Scar states are special finite-energy density, but non-thermal states of
chaotic Hamiltonians. We argue that all holographic quantum field theories,
including $\mathcal{N}=4$ super Yang--Mills, have scar states. Their presence
is tied to the existence of non-topological, horizonless soliton solutions in
gravity: oscillons and a novel family of excited boson stars. We demonstrate
that these solutions have periodic oscillations in the correlation functions
and posses low-entanglement entropy as expected for scar states. Also we find
that they can be very easily prepared with Euclidean path integral.
